78392941 has 4 divisors (see below), whose sum is σ = 85519584. Its totient is φ = 71266300.

The previous prime is 78392929. The next prime is 78392953. The reversal of 78392941 is 14929387.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (78392929) and next prime (78392953).

It is a cyclic number.

It is not a de Polignac number, because 78392941 - 2⁷ = 78392813 is a prime.

It is a super-2 number, since 2×78392941² = 12290906397258962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78392911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3563305 + ... + 3563326.

It is an arithmetic number, because the mean of its divisors is an integer number (21379896).

Almost surely, 2^78392941 is an apocalyptic number.

It is an amenable number.

78392941 is a deficient number, since it is larger than the sum of its proper divisors (7126643).

78392941 is a wasteful number, since it uses less digits than its factorization.

78392941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7126642.

The product of its digits is 108864, while the sum is 43.

The square root of 78392941 is about 8853.9788231055. The cubic root of 78392941 is about 427.9821465316.

The spelling of 78392941 in words is "seventy-eight million, three hundred ninety-two thousand, nine hundred forty-one".