72474903 has 12 divisors (see below), whose sum is σ = 106661880. Its totient is φ = 47404656.

The previous prime is 72474889. The next prime is 72474917. The reversal of 72474903 is 30947427.

It is an interprime number because it is at equal distance from previous prime (72474889) and next prime (72474917).

It is not a de Polignac number, because 72474903 - 2⁴ = 72474887 is a prime.

It is a super-2 number, since 2×72474903² = 10505223129718818, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72476903) 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, 75493 + ... + 76446.

It is an arithmetic number, because the mean of its divisors is an integer number (8888490).

Almost surely, 2^72474903 is an apocalyptic number.

72474903 is a deficient number, since it is larger than the sum of its proper divisors (34186977).

72474903 is a wasteful number, since it uses less digits than its factorization.

72474903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151998 (or 151995 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 72474903 is about 8513.2193088161. The cubic root of 72474903 is about 416.9294258013.

The spelling of 72474903 in words is "seventy-two million, four hundred seventy-four thousand, nine hundred three".