78620032 has 16 divisors (see below), whose sum is σ = 156626100. Its totient is φ = 39309952.

The previous prime is 78620029. The next prime is 78620099. The reversal of 78620032 is 23002687.

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×78620032² = 12362218863362048, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306982 + ... + 307237.

Almost surely, 2^78620032 is an apocalyptic number.

It is an amenable number.

78620032 is a deficient number, since it is larger than the sum of its proper divisors (78006068).

78620032 is an equidigital number, since it uses as much as digits as its factorization.

78620032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614233 (or 614221 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 78620032 is about 8866.7937835499. The cubic root of 78620032 is about 428.3950119191.

The spelling of 78620032 in words is "seventy-eight million, six hundred twenty thousand, thirty-two".