78958288 has 20 divisors (see below), whose sum is σ = 154920640. Its totient is φ = 38978784.

The previous prime is 78958273. The next prime is 78958303. The reversal of 78958288 is 88285987.

It is an interprime number because it is at equal distance from previous prime (78958273) and next prime (78958303).

It is a super-2 number, since 2×78958288² = 12468822487781888, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29970 + ... + 32497.

It is an arithmetic number, because the mean of its divisors is an integer number (7746032).

Almost surely, 2^78958288 is an apocalyptic number.

It is an amenable number.

78958288 is a deficient number, since it is larger than the sum of its proper divisors (75962352).

78958288 is a wasteful number, since it uses less digits than its factorization.

78958288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62554 (or 62548 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 55.

The square root of 78958288 is about 8885.8476241718. The cubic root of 78958288 is about 429.0085106159.

The spelling of 78958288 in words is "seventy-eight million, nine hundred fifty-eight thousand, two hundred eighty-eight".