78913402 has 8 divisors (see below), whose sum is σ = 118432512. Its totient is φ = 39435900.

The previous prime is 78913399. The next prime is 78913409. The reversal of 78913402 is 20431987.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (78913409) 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, 5124 + ... + 13567.

It is an arithmetic number, because the mean of its divisors is an integer number (14804064).

Almost surely, 2^78913402 is an apocalyptic number.

78913402 is a deficient number, since it is larger than the sum of its proper divisors (39519110).

78913402 is a wasteful number, since it uses less digits than its factorization.

78913402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20804.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 78913402 is about 8883.3215634694. The cubic root of 78913402 is about 428.9272013297.

The spelling of 78913402 in words is "seventy-eight million, nine hundred thirteen thousand, four hundred two".