383980651 has 4 divisors (see below), whose sum is σ = 384094872. Its totient is φ = 383866432.

The previous prime is 383980637. The next prime is 383980661. The reversal of 383980651 is 156089383.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 383980651 - 2⁷ = 383980523 is a prime.

It is a super-2 number, since 2×383980651² = 294882280684767602, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 383980598 and 383980607.

It is not an unprimeable number, because it can be changed into a prime (383980661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51910 + ... + 58843.

It is an arithmetic number, because the mean of its divisors is an integer number (96023718).

Almost surely, 2^383980651 is an apocalyptic number.

383980651 is a deficient number, since it is larger than the sum of its proper divisors (114221).

383980651 is a wasteful number, since it uses less digits than its factorization.

383980651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114220.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 383980651 is about 19595.4242362854. The cubic root of 383980651 is about 726.8360287798.

The spelling of 383980651 in words is "three hundred eighty-three million, nine hundred eighty thousand, six hundred fifty-one".