78314732 has 24 divisors (see below), whose sum is σ = 149242800. Its totient is φ = 35816256.

The previous prime is 78314729. The next prime is 78314741. The reversal of 78314732 is 23741387.

It is a super-2 number, since 2×78314732² = 12266394496463648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78314692 and 78314701.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15563 + ... + 19970.

It is an arithmetic number, because the mean of its divisors is an integer number (6218450).

Almost surely, 2^78314732 is an apocalyptic number.

It is an amenable number.

78314732 is a deficient number, since it is larger than the sum of its proper divisors (70928068).

78314732 is a wasteful number, since it uses less digits than its factorization.

78314732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35585 (or 35583 counting only the distinct ones).

The product of its digits is 28224, while the sum is 35.

The square root of 78314732 is about 8849.5611190612. The cubic root of 78314732 is about 427.8397731979.

The spelling of 78314732 in words is "seventy-eight million, three hundred fourteen thousand, seven hundred thirty-two".