402052697 has 2 divisors, whose sum is σ = 402052698. Its totient is φ = 402052696.

The previous prime is 402052691. The next prime is 402052759. The reversal of 402052697 is 796250204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 330548761 + 71503936 = 18181^2 + 8456^2 .

It is a cyclic number.

It is not a de Polignac number, because 402052697 - 2⁶ = 402052633 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (402052691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201026348 + 201026349.

It is an arithmetic number, because the mean of its divisors is an integer number (201026349).

Almost surely, 2^402052697 is an apocalyptic number.

It is an amenable number.

402052697 is a deficient number, since it is larger than the sum of its proper divisors (1).

402052697 is an equidigital number, since it uses as much as digits as its factorization.

402052697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 402052697 is about 20051.2517564366. The cubic root of 402052697 is about 738.0645166287.

The spelling of 402052697 in words is "four hundred two million, fifty-two thousand, six hundred ninety-seven".