78337852 has 6 divisors (see below), whose sum is σ = 137091248. Its totient is φ = 39168924.

The previous prime is 78337841. The next prime is 78337859. The reversal of 78337852 is 25873387.

It is a super-2 number, since 2×78337852² = 12273638111947808, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78337799 and 78337808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78337859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9792228 + ... + 9792235.

Almost surely, 2^78337852 is an apocalyptic number.

It is an amenable number.

78337852 is a deficient number, since it is larger than the sum of its proper divisors (58753396).

78337852 is a wasteful number, since it uses less digits than its factorization.

78337852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19584467 (or 19584465 counting only the distinct ones).

The product of its digits is 282240, while the sum is 43.

The square root of 78337852 is about 8850.8673021349. The cubic root of 78337852 is about 427.8818712045.

The spelling of 78337852 in words is "seventy-eight million, three hundred thirty-seven thousand, eight hundred fifty-two".