78490852 has 12 divisors (see below), whose sum is σ = 149846256. Its totient is φ = 35677640.

The previous prime is 78490829. The next prime is 78490861. The reversal of 78490852 is 25809487.

It is a junction number, because it is equal to n+sod(n) for n = 78490799 and 78490808.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 891898 + ... + 891985.

It is an arithmetic number, because the mean of its divisors is an integer number (12487188).

Almost surely, 2^78490852 is an apocalyptic number.

It is an amenable number.

78490852 is a deficient number, since it is larger than the sum of its proper divisors (71355404).

78490852 is a wasteful number, since it uses less digits than its factorization.

78490852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1783898 (or 1783896 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 78490852 is about 8859.5063067871. The cubic root of 78490852 is about 428.1602523905.

The spelling of 78490852 in words is "seventy-eight million, four hundred ninety thousand, eight hundred fifty-two".