79896490 has 8 divisors (see below), whose sum is σ = 143813700. Its totient is φ = 31958592.

The previous prime is 79896473. The next prime is 79896511. The reversal of 79896490 is 9469897.

It can be written as a sum of positive squares in 2 ways, for example, as 74874409 + 5022081 = 8653^2 + 2241^2 .

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

It is a super-2 number, since 2×79896490² = 12766898228640200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3994815 + ... + 3994834.

Almost surely, 2^79896490 is an apocalyptic number.

79896490 is a deficient number, since it is larger than the sum of its proper divisors (63917210).

79896490 is a wasteful number, since it uses less digits than its factorization.

79896490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7989656.

The product of its (nonzero) digits is 979776, while the sum is 52.

The square root of 79896490 is about 8938.4836521638. The cubic root of 79896490 is about 430.7010198527.

The spelling of 79896490 in words is "seventy-nine million, eight hundred ninety-six thousand, four hundred ninety".