716633389 has 2 divisors, whose sum is σ = 716633390. Its totient is φ = 716633388.

The previous prime is 716633347. The next prime is 716633447. The reversal of 716633389 is 983336617.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 553049289 + 163584100 = 23517^2 + 12790^2 .

It is a cyclic number.

It is not a de Polignac number, because 716633389 - 2⁹ = 716632877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (716633329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 358316694 + 358316695.

It is an arithmetic number, because the mean of its divisors is an integer number (358316695).

Almost surely, 2^716633389 is an apocalyptic number.

It is an amenable number.

716633389 is a deficient number, since it is larger than the sum of its proper divisors (1).

716633389 is an equidigital number, since it uses as much as digits as its factorization.

716633389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 489888, while the sum is 46.

The square root of 716633389 is about 26770.0091333567. The cubic root of 716633389 is about 894.8818083057.

The spelling of 716633389 in words is "seven hundred sixteen million, six hundred thirty-three thousand, three hundred eighty-nine".