78962972 has 24 divisors (see below), whose sum is σ = 151036032. Its totient is φ = 35823600.

The previous prime is 78962957. The next prime is 78962987. The reversal of 78962972 is 27926987.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (78962957) and next prime (78962987).

It is a self number, because there is not a number n which added to its sum of digits gives 78962972.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26897 + ... + 29687.

It is an arithmetic number, because the mean of its divisors is an integer number (6293168).

Almost surely, 2^78962972 is an apocalyptic number.

It is an amenable number.

78962972 is a deficient number, since it is larger than the sum of its proper divisors (72073060).

78962972 is a wasteful number, since it uses less digits than its factorization.

78962972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3449 (or 3447 counting only the distinct ones).

The product of its digits is 762048, while the sum is 50.

The square root of 78962972 is about 8886.1111854399. Note that the first 4 decimals coincide. The cubic root of 78962972 is about 429.0169937284.

The spelling of 78962972 in words is "seventy-eight million, nine hundred sixty-two thousand, nine hundred seventy-two".