1402872637 has 2 divisors, whose sum is σ = 1402872638. Its totient is φ = 1402872636.

The previous prime is 1402872629. The next prime is 1402872671. The reversal of 1402872637 is 7362782041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 804629956 + 598242681 = 28366^2 + 24459^2 .

It is a cyclic number.

It is not a de Polignac number, because 1402872637 - 2³ = 1402872629 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1402872637.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1402872617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 701436318 + 701436319.

It is an arithmetic number, because the mean of its divisors is an integer number (701436319).

Almost surely, 2^1402872637 is an apocalyptic number.

It is an amenable number.

1402872637 is a deficient number, since it is larger than the sum of its proper divisors (1).

1402872637 is an equidigital number, since it uses as much as digits as its factorization.

1402872637 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 40.

The square root of 1402872637 is about 37454.9414229952. The cubic root of 1402872637 is about 1119.4535591718.

The spelling of 1402872637 in words is "one billion, four hundred two million, eight hundred seventy-two thousand, six hundred thirty-seven".