7402487 has 4 divisors (see below), whose sum is σ = 7407936. Its totient is φ = 7397040.

The previous prime is 7402471. The next prime is 7402489. The reversal of 7402487 is 7842047.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 7402487 - 2⁴ = 7402471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7402489) 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, 1163 + ... + 4019.

It is an arithmetic number, because the mean of its divisors is an integer number (1851984).

Almost surely, 2^7402487 is an apocalyptic number.

7402487 is a deficient number, since it is larger than the sum of its proper divisors (5449).

7402487 is a wasteful number, since it uses less digits than its factorization.

7402487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5448.

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

The square root of 7402487 is about 2720.7511830375. The cubic root of 7402487 is about 194.8913442448.

The spelling of 7402487 in words is "seven million, four hundred two thousand, four hundred eighty-seven".