7042987 has 16 divisors (see below), whose sum is σ = 8404992. Its totient is φ = 5775840.

The previous prime is 7042961. The next prime is 7042993. The reversal of 7042987 is 7892407.

It is a happy number.

It is not a de Polignac number, because 7042987 - 2¹⁵ = 7010219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7042907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18198 + ... + 18580.

It is an arithmetic number, because the mean of its divisors is an integer number (525312).

Almost surely, 2^7042987 is an apocalyptic number.

7042987 is a deficient number, since it is larger than the sum of its proper divisors (1362005).

7042987 is a wasteful number, since it uses less digits than its factorization.

7042987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 7042987 is about 2653.8626565819. The cubic root of 7042987 is about 191.6838964557.

The spelling of 7042987 in words is "seven million, forty-two thousand, nine hundred eighty-seven".