78964081 has 8 divisors (see below), whose sum is σ = 90334400. Its totient is φ = 67616208.

The previous prime is 78964033. The next prime is 78964097. The reversal of 78964081 is 18046987.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78964081 - 2¹³ = 78955889 is a prime.

It is a super-2 number, since 2×78964081² = 12470652176349122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78964001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2770 + ... + 12868.

It is an arithmetic number, because the mean of its divisors is an integer number (11291800).

Almost surely, 2^78964081 is an apocalyptic number.

It is an amenable number.

78964081 is a deficient number, since it is larger than the sum of its proper divisors (11370319).

78964081 is a wasteful number, since it uses less digits than its factorization.

78964081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11223.

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 78964081 is about 8886.1735859705. The cubic root of 78964081 is about 429.0190021703.

The spelling of 78964081 in words is "seventy-eight million, nine hundred sixty-four thousand, eighty-one".