7402087 has 24 divisors (see below), whose sum is σ = 9718272. Its totient is φ = 5569200.

The previous prime is 7402061. The next prime is 7402097. The reversal of 7402087 is 7802047.

It is not a de Polignac number, because 7402087 - 2¹⁹ = 6877799 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7402007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16488 + ... + 16930.

It is an arithmetic number, because the mean of its divisors is an integer number (404928).

Almost surely, 2^7402087 is an apocalyptic number.

7402087 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

7402087 is a deficient number, since it is larger than the sum of its proper divisors (2316185).

7402087 is a wasteful number, since it uses less digits than its factorization.

7402087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499 (or 492 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 7402087 is about 2720.6776729337. The cubic root of 7402087 is about 194.8878338056.

The spelling of 7402087 in words is "seven million, four hundred two thousand, eighty-seven".