78329652 has 12 divisors (see below), whose sum is σ = 182769216. Its totient is φ = 26109880.

The previous prime is 78329623. The next prime is 78329677. The reversal of 78329652 is 25692387.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×78329652² = 12271068764882208, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

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, 3263724 + ... + 3263747.

It is an arithmetic number, because the mean of its divisors is an integer number (15230768).

Almost surely, 2^78329652 is an apocalyptic number.

It is an amenable number.

78329652 is an abundant number, since it is smaller than the sum of its proper divisors (104439564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78329652 is a wasteful number, since it uses less digits than its factorization.

78329652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6527478 (or 6527476 counting only the distinct ones).

The product of its digits is 181440, while the sum is 42.

The square root of 78329652 is about 8850.4040585727. The cubic root of 78329652 is about 427.8669411986.

The spelling of 78329652 in words is "seventy-eight million, three hundred twenty-nine thousand, six hundred fifty-two".