7472731 has 8 divisors (see below), whose sum is σ = 8564960. Its totient is φ = 6386688.

The previous prime is 7472693. The next prime is 7472737. The reversal of 7472731 is 1372747.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7472731 - 2⁷ = 7472603 is a prime.

It is a super-2 number, since 2×7472731² = 111683417196722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7472693 and 7472702.

It is not an unprimeable number, because it can be changed into a prime (7472737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1435 + ... + 4123.

It is an arithmetic number, because the mean of its divisors is an integer number (1070620).

Almost surely, 2^7472731 is an apocalyptic number.

7472731 is a deficient number, since it is larger than the sum of its proper divisors (1092229).

7472731 is a wasteful number, since it uses less digits than its factorization.

7472731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3093.

The product of its digits is 8232, while the sum is 31.

The square root of 7472731 is about 2733.6296384112. The cubic root of 7472731 is about 195.5058616819.

The spelling of 7472731 in words is "seven million, four hundred seventy-two thousand, seven hundred thirty-one".