78873954 has 32 divisors (see below), whose sum is σ = 162100224. Its totient is φ = 25571280.

The previous prime is 78873953. The next prime is 78873979. The reversal of 78873954 is 45937887.

It is a super-2 number, since 2×78873954² = 12442201239188232, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78873897 and 78873906.

It is not an unprimeable number, because it can be changed into a prime (78873953) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79747 + ... + 80729.

It is an arithmetic number, because the mean of its divisors is an integer number (5065632).

Almost surely, 2^78873954 is an apocalyptic number.

78873954 is an abundant number, since it is smaller than the sum of its proper divisors (83226270).

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

78873954 is a wasteful number, since it uses less digits than its factorization.

78873954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342.

The product of its digits is 1693440, while the sum is 51.

The square root of 78873954 is about 8881.1009452657. The cubic root of 78873954 is about 428.8557173146.

The spelling of 78873954 in words is "seventy-eight million, eight hundred seventy-three thousand, nine hundred fifty-four".