623493954 has 12 divisors (see below), whose sum is σ = 1350903606. Its totient is φ = 207831312.

The previous prime is 623493953. The next prime is 623493967. The reversal of 623493954 is 459394326.

It can be written as a sum of positive squares in only one way, i.e., 423412929 + 200081025 = 20577^2 + 14145^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (623493953) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17319259 + ... + 17319294.

Almost surely, 2^623493954 is an apocalyptic number.

623493954 is an abundant number, since it is smaller than the sum of its proper divisors (727409652).

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

623493954 is a wasteful number, since it uses less digits than its factorization.

623493954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34638561 (or 34638558 counting only the distinct ones).

The product of its digits is 699840, while the sum is 45.

The square root of 623493954 is about 24969.8609127083. The cubic root of 623493954 is about 854.3006736705.

The spelling of 623493954 in words is "six hundred twenty-three million, four hundred ninety-three thousand, nine hundred fifty-four".