7487402 has 8 divisors (see below), whose sum is σ = 12095076. Its totient is φ = 3455712.

The previous prime is 7487401. The next prime is 7487407. The reversal of 7487402 is 2047847.

It can be written as a sum of positive squares in 2 ways, for example, as 5851561 + 1635841 = 2419^2 + 1279^2 .

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

It is a super-2 number, since 2×7487402² = 112122377419208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7487401) 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, 143963 + ... + 144014.

Almost surely, 2^7487402 is an apocalyptic number.

7487402 is a deficient number, since it is larger than the sum of its proper divisors (4607674).

7487402 is a wasteful number, since it uses less digits than its factorization.

7487402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287992.

The product of its (nonzero) digits is 12544, while the sum is 32.

The square root of 7487402 is about 2736.3117512447. The cubic root of 7487402 is about 195.6337217409.

The spelling of 7487402 in words is "seven million, four hundred eighty-seven thousand, four hundred two".