78373023 has 4 divisors (see below), whose sum is σ = 104497368. Its totient is φ = 52248680.

The previous prime is 78373021. The next prime is 78373027. The reversal of 78373023 is 32037387.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 78373023 - 2¹ = 78373021 is a prime.

It is a super-2 number, since 2×78373023² = 12284661468317058, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78373021) 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, 13062168 + ... + 13062173.

It is an arithmetic number, because the mean of its divisors is an integer number (26124342).

Almost surely, 2^78373023 is an apocalyptic number.

78373023 is a deficient number, since it is larger than the sum of its proper divisors (26124345).

78373023 is a wasteful number, since it uses less digits than its factorization.

78373023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26124344.

The product of its (nonzero) digits is 21168, while the sum is 33.

The square root of 78373023 is about 8852.8539466095. The cubic root of 78373023 is about 427.9458963695.

The spelling of 78373023 in words is "seventy-eight million, three hundred seventy-three thousand, twenty-three".