79315402 has 8 divisors (see below), whose sum is σ = 121875012. Its totient is φ = 38690400.

The previous prime is 79315351. The next prime is 79315409. The reversal of 79315402 is 20451397.

It can be written as a sum of positive squares in 2 ways, for example, as 79192201 + 123201 = 8899^2 + 351^2 .

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 (79315409) 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, 483549 + ... + 483712.

Almost surely, 2^79315402 is an apocalyptic number.

79315402 is a deficient number, since it is larger than the sum of its proper divisors (42559610).

79315402 is a wasteful number, since it uses less digits than its factorization.

79315402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967304.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 79315402 is about 8905.9194921131. The cubic root of 79315402 is about 429.6543138412.

Adding to 79315402 its reverse (20451397), we get a palindrome (99766799).

The spelling of 79315402 in words is "seventy-nine million, three hundred fifteen thousand, four hundred two".