7472745 has 36 divisors (see below), whose sum is σ = 15071940. Its totient is φ = 3415104.

The previous prime is 7472737. The next prime is 7472747. The reversal of 7472745 is 5472747.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5433561 + 2039184 = 2331^2 + 1428^2 .

It is not a de Polignac number, because 7472745 - 2³ = 7472737 is a prime.

It is an alternating number because its digits alternate between odd and even.

7472745 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7472747) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 511 + ... + 3899.

It is an arithmetic number, because the mean of its divisors is an integer number (418665).

Almost surely, 2^7472745 is an apocalyptic number.

It is an amenable number.

7472745 is an abundant number, since it is smaller than the sum of its proper divisors (7599195).

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

7472745 is a wasteful number, since it uses less digits than its factorization.

7472745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3414 (or 3404 counting only the distinct ones).

The product of its digits is 54880, while the sum is 36.

The square root of 7472745 is about 2733.6321991080. The cubic root of 7472745 is about 195.5059837739.

The spelling of 7472745 in words is "seven million, four hundred seventy-two thousand, seven hundred forty-five".