402527087 has 4 divisors (see below), whose sum is σ = 409349640. Its totient is φ = 395704536.

The previous prime is 402526991. The next prime is 402527123. The reversal of 402527087 is 780725204.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 402527087 - 2¹⁶ = 402461551 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 (402527387) 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, 3411188 + ... + 3411305.

It is an arithmetic number, because the mean of its divisors is an integer number (102337410).

Almost surely, 2^402527087 is an apocalyptic number.

402527087 is a deficient number, since it is larger than the sum of its proper divisors (6822553).

402527087 is an equidigital number, since it uses as much as digits as its factorization.

402527087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6822552.

The product of its (nonzero) digits is 31360, while the sum is 35.

The square root of 402527087 is about 20063.0777050781. The cubic root of 402527087 is about 738.3546882159.

The spelling of 402527087 in words is "four hundred two million, five hundred twenty-seven thousand, eighty-seven".