7978023 has 12 divisors (see below), whose sum is σ = 11548888. Its totient is φ = 5307120.

The previous prime is 7978021. The next prime is 7978063. The reversal of 7978023 is 3208797.

It is not a de Polignac number, because 7978023 - 2¹ = 7978021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7978021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6228 + ... + 7398.

Almost surely, 2^7978023 is an apocalyptic number.

7978023 is a deficient number, since it is larger than the sum of its proper divisors (3570865).

7978023 is a wasteful number, since it uses less digits than its factorization.

7978023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1934 (or 1931 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 7978023 is about 2824.5394314826. The cubic root of 7978023 is about 199.8166903726.

The spelling of 7978023 in words is "seven million, nine hundred seventy-eight thousand, twenty-three".