379955961 has 64 divisors (see below), whose sum is σ = 706406400. Its totient is φ = 196084800.

The previous prime is 379955959. The next prime is 379955963. The reversal of 379955961 is 169559973.

379955961 is a nontrivial binomial coefficient, being equal to C(27567, 2).

It is an interprime number because it is at equal distance from previous prime (379955959) and next prime (379955963).

It is not a de Polignac number, because 379955961 - 2¹ = 379955959 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 379955898 and 379955907.

It is not an unprimeable number, because it can be changed into a prime (379955963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 371631 + ... + 372651.

It is an arithmetic number, because the mean of its divisors is an integer number (11037600).

Almost surely, 2^379955961 is an apocalyptic number.

379955961 is the 27566-th triangular number.

It is an amenable number.

379955961 is a deficient number, since it is larger than the sum of its proper divisors (326450439).

379955961 is a wasteful number, since it uses less digits than its factorization.

379955961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1227 (or 1221 counting only the distinct ones).

The product of its digits is 2296350, while the sum is 54.

The square root of 379955961 is about 19492.4590803726. The cubic root of 379955961 is about 724.2876624416.

It can be divided in two parts, 37995 and 5961, that added together give a triangular number (43956 = T₂₉₆).

The spelling of 379955961 in words is "three hundred seventy-nine million, nine hundred fifty-five thousand, nine hundred sixty-one".