78251296 has 12 divisors (see below), whose sum is σ = 154057302. Its totient is φ = 39125632.

The previous prime is 78251281. The next prime is 78251333. The reversal of 78251296 is 69215287.

It can be written as a sum of positive squares in only one way, i.e., 78074896 + 176400 = 8836^2 + 420^2 .

It is a super-2 number, since 2×78251296² = 12246530651359232, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1222645 + ... + 1222708.

Almost surely, 2^78251296 is an apocalyptic number.

It is an amenable number.

78251296 is a deficient number, since it is larger than the sum of its proper divisors (75806006).

78251296 is a wasteful number, since it uses less digits than its factorization.

78251296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2445363 (or 2445355 counting only the distinct ones).

The product of its digits is 60480, while the sum is 40.

The square root of 78251296 is about 8845.9762604248. The cubic root of 78251296 is about 427.7242233114.

The spelling of 78251296 in words is "seventy-eight million, two hundred fifty-one thousand, two hundred ninety-six".