78233072 has 10 divisors (see below), whose sum is σ = 151576608. Its totient is φ = 39116528.

The previous prime is 78233021. The next prime is 78233081. The reversal of 78233072 is 27033287.

It is a happy number.

It is a super-2 number, since 2×78233072² = 12240827109114368, 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, 2444768 + ... + 2444799.

Almost surely, 2^78233072 is an apocalyptic number.

It is an amenable number.

78233072 is a deficient number, since it is larger than the sum of its proper divisors (73343536).

78233072 is a wasteful number, since it uses less digits than its factorization.

78233072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4889575 (or 4889569 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 78233072 is about 8844.9461275917. The cubic root of 78233072 is about 427.6910164005.

The spelling of 78233072 in words is "seventy-eight million, two hundred thirty-three thousand, seventy-two".