391962034 has 4 divisors (see below), whose sum is σ = 587943054. Its totient is φ = 195981016.

The previous prime is 391962031. The next prime is 391962037. The reversal of 391962034 is 430269193.

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

It is an interprime number because it is at equal distance from previous prime (391962031) and next prime (391962037).

It can be written as a sum of positive squares in only one way, i.e., 216001809 + 175960225 = 14697^2 + 13265^2 .

It is a junction number, because it is equal to n+sod(n) for n = 391961984 and 391962002.

It is not an unprimeable number, because it can be changed into a prime (391962031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97990507 + ... + 97990510.

Almost surely, 2^391962034 is an apocalyptic number.

391962034 is a deficient number, since it is larger than the sum of its proper divisors (195981020).

391962034 is a wasteful number, since it uses less digits than its factorization.

391962034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195981019.

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 391962034 is about 19798.0310637194. The cubic root of 391962034 is about 731.8375138267.

The spelling of 391962034 in words is "three hundred ninety-one million, nine hundred sixty-two thousand, thirty-four".