78608632 has 8 divisors (see below), whose sum is σ = 147391200. Its totient is φ = 39304312.

The previous prime is 78608617. The next prime is 78608633. The reversal of 78608632 is 23680687.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×78608632² = 12358634049822848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78608633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4913032 + ... + 4913047.

It is an arithmetic number, because the mean of its divisors is an integer number (18423900).

Almost surely, 2^78608632 is an apocalyptic number.

It is an amenable number.

78608632 is a deficient number, since it is larger than the sum of its proper divisors (68782568).

78608632 is a wasteful number, since it uses less digits than its factorization.

78608632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9826085 (or 9826081 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 78608632 is about 8866.1509123182. The cubic root of 78608632 is about 428.3743049861.

The spelling of 78608632 in words is "seventy-eight million, six hundred eight thousand, six hundred thirty-two".