402653047 has 2 divisors, whose sum is σ = 402653048. Its totient is φ = 402653046.

The previous prime is 402652979. The next prime is 402653051. The reversal of 402653047 is 740356204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 402653047 - 2¹⁹ = 402128759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402654047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201326523 + 201326524.

It is an arithmetic number, because the mean of its divisors is an integer number (201326524).

Almost surely, 2^402653047 is an apocalyptic number.

402653047 is a deficient number, since it is larger than the sum of its proper divisors (1).

402653047 is an equidigital number, since it uses as much as digits as its factorization.

402653047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 402653047 is about 20066.2165591823. The cubic root of 402653047 is about 738.4316962486.

The spelling of 402653047 in words is "four hundred two million, six hundred fifty-three thousand, forty-seven".