78352582 has 48 divisors (see below), whose sum is σ = 154135296. Its totient is φ = 29185200.

The previous prime is 78352553. The next prime is 78352591. The reversal of 78352582 is 28525387.

It is a super-2 number, since 2×78352582² = 12278254212133448, 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 in 23 ways as a sum of consecutive naturals, for example, 37957 + ... + 39967.

It is an arithmetic number, because the mean of its divisors is an integer number (3211152).

Almost surely, 2^78352582 is an apocalyptic number.

78352582 is a deficient number, since it is larger than the sum of its proper divisors (75782714).

78352582 is a wasteful number, since it uses less digits than its factorization.

78352582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2065 (or 2054 counting only the distinct ones).

The product of its digits is 134400, while the sum is 40.

The square root of 78352582 is about 8851.6993848639. The cubic root of 78352582 is about 427.9086879766.

The spelling of 78352582 in words is "seventy-eight million, three hundred fifty-two thousand, five hundred eighty-two".