402894077 has 2 divisors, whose sum is σ = 402894078. Its totient is φ = 402894076.

The previous prime is 402894049. The next prime is 402894091. The reversal of 402894077 is 770498204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 318051556 + 84842521 = 17834^2 + 9211^2 .

It is a cyclic number.

It is not a de Polignac number, because 402894077 - 2¹⁰ = 402893053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402894277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201447038 + 201447039.

It is an arithmetic number, because the mean of its divisors is an integer number (201447039).

Almost surely, 2^402894077 is an apocalyptic number.

It is an amenable number.

402894077 is a deficient number, since it is larger than the sum of its proper divisors (1).

402894077 is an equidigital number, since it uses as much as digits as its factorization.

402894077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 402894077 is about 20072.2215262785. The cubic root of 402894077 is about 738.5790097491.

The spelling of 402894077 in words is "four hundred two million, eight hundred ninety-four thousand, seventy-seven".