78622800 has 60 divisors (see below), whose sum is σ = 251858880. Its totient is φ = 20965760.

The previous prime is 78622787. The next prime is 78622823. The reversal of 78622800 is 822687.

It is a tau number, because it is divible by the number of its divisors (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31560 + ... + 33959.

It is an arithmetic number, because the mean of its divisors is an integer number (4197648).

Almost surely, 2^78622800 is an apocalyptic number.

It is an amenable number.

78622800 is an abundant number, since it is smaller than the sum of its proper divisors (173236080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78622800 is a wasteful number, since it uses less digits than its factorization.

78622800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65540 (or 65529 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 78622800 is about 8866.9498701639. The cubic root of 78622800 is about 428.4000394057.

The spelling of 78622800 in words is "seventy-eight million, six hundred twenty-two thousand, eight hundred".