1961379 has 24 divisors (see below), whose sum is σ = 3274752. Its totient is φ = 1108080.

The previous prime is 1961363. The next prime is 1961381. The reversal of 1961379 is 9731691.

It is not a de Polignac number, because 1961379 - 2⁴ = 1961363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1961329) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10174 + ... + 10364.

It is an arithmetic number, because the mean of its divisors is an integer number (136448).

2^1961379 is an apocalyptic number.

1961379 is a deficient number, since it is larger than the sum of its proper divisors (1313373).

1961379 is a wasteful number, since it uses less digits than its factorization.

1961379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367 (or 364 counting only the distinct ones).

The product of its digits is 10206, while the sum is 36.

The square root of 1961379 is about 1400.4924134032. The cubic root of 1961379 is about 125.1758378657.

The spelling of 1961379 in words is "one million, nine hundred sixty-one thousand, three hundred seventy-nine".