368402691 has 4 divisors (see below), whose sum is σ = 491203592. Its totient is φ = 245601792.

The previous prime is 368402677. The next prime is 368402719. The reversal of 368402691 is 196204863.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 196204863 = 3 ⋅65401621.

It is not a de Polignac number, because 368402691 - 2⁵ = 368402659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (368402491) 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, 61400446 + ... + 61400451.

It is an arithmetic number, because the mean of its divisors is an integer number (122800898).

Almost surely, 2^368402691 is an apocalyptic number.

368402691 is a deficient number, since it is larger than the sum of its proper divisors (122800901).

368402691 is a wasteful number, since it uses less digits than its factorization.

368402691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122800900.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 368402691 is about 19193.8190832361. The cubic root of 368402691 is about 716.8708668041.

The spelling of 368402691 in words is "three hundred sixty-eight million, four hundred two thousand, six hundred ninety-one".