7478712 has 48 divisors (see below), whose sum is σ = 20386080. Its totient is φ = 2476800.

The previous prime is 7478707. The next prime is 7478717. The reversal of 7478712 is 2178747.

7478712 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (7478707) and next prime (7478717).

It is a super-2 number, since 2×7478712² = 111862266357888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7478717) 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, 17137 + ... + 17567.

It is an arithmetic number, because the mean of its divisors is an integer number (424710).

Almost surely, 2^7478712 is an apocalyptic number.

7478712 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

7478712 is an abundant number, since it is smaller than the sum of its proper divisors (12907368).

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

7478712 is a wasteful number, since it uses less digits than its factorization.

7478712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684 (or 677 counting only the distinct ones).

The product of its digits is 21952, while the sum is 36.

The square root of 7478712 is about 2734.7233863775. The cubic root of 7478712 is about 195.5580072198.

The spelling of 7478712 in words is "seven million, four hundred seventy-eight thousand, seven hundred twelve".