78284300 has 36 divisors (see below), whose sum is σ = 175363776. Its totient is φ = 30302400.

The previous prime is 78284299. The next prime is 78284321. The reversal of 78284300 is 348287.

It is a super-2 number, since 2×78284300² = 12256863252980000, which contains 22 as substring.

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, 9527 + ... + 15726.

It is an arithmetic number, because the mean of its divisors is an integer number (4871216).

Almost surely, 2^78284300 is an apocalyptic number.

It is an amenable number.

78284300 is an abundant number, since it is smaller than the sum of its proper divisors (97079476).

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

78284300 is a wasteful number, since it uses less digits than its factorization.

78284300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25298 (or 25291 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 78284300 is about 8847.8415446933. The cubic root of 78284300 is about 427.7843485182.

The spelling of 78284300 in words is "seventy-eight million, two hundred eighty-four thousand, three hundred".