72474307 has 4 divisors (see below), whose sum is σ = 74159800. Its totient is φ = 70788816.

The previous prime is 72474301. The next prime is 72474313. The reversal of 72474307 is 70347427.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (72474301) and next prime (72474313).

It is a cyclic number.

It is not a de Polignac number, because 72474307 - 2³ = 72474299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72474301) 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, 842682 + ... + 842767.

It is an arithmetic number, because the mean of its divisors is an integer number (18539950).

Almost surely, 2^72474307 is an apocalyptic number.

72474307 is a deficient number, since it is larger than the sum of its proper divisors (1685493).

72474307 is a wasteful number, since it uses less digits than its factorization.

72474307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1685492.

The product of its (nonzero) digits is 32928, while the sum is 34.

The square root of 72474307 is about 8513.1843043599. The cubic root of 72474307 is about 416.9282829200.

The spelling of 72474307 in words is "seventy-two million, four hundred seventy-four thousand, three hundred seven".