7287213604 has 24 divisors (see below), whose sum is σ = 13982588928. Its totient is φ = 3295551840.

The previous prime is 7287213601. The next prime is 7287213607. The reversal of 7287213604 is 4063127827.

It is an interprime number because it is at equal distance from previous prime (7287213601) and next prime (7287213607).

It is a super-2 number, since 2×7287213604² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7287213601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 411684 + ... + 429019.

It is an arithmetic number, because the mean of its divisors is an integer number (582607872).

Almost surely, 2^7287213604 is an apocalyptic number.

It is an amenable number.

7287213604 is a deficient number, since it is larger than the sum of its proper divisors (6695375324).

7287213604 is a wasteful number, since it uses less digits than its factorization.

7287213604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840915 (or 840913 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 7287213604 is about 85365.1779357368. The cubic root of 7287213604 is about 1938.7441480573.

The spelling of 7287213604 in words is "seven billion, two hundred eighty-seven million, two hundred thirteen thousand, six hundred four".