716887537 has 4 divisors (see below), whose sum is σ = 754618480. Its totient is φ = 679156596.

The previous prime is 716887489. The next prime is 716887541. The reversal of 716887537 is 735788617.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 735788617 = 131 ⋅5616707.

It is not a de Polignac number, because 716887537 - 2²³ = 708498929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (716887547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18865443 + ... + 18865480.

It is an arithmetic number, because the mean of its divisors is an integer number (188654620).

Almost surely, 2^716887537 is an apocalyptic number.

It is an amenable number.

716887537 is a deficient number, since it is larger than the sum of its proper divisors (37730943).

716887537 is a wasteful number, since it uses less digits than its factorization.

716887537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37730942.

The product of its digits is 1975680, while the sum is 52.

The square root of 716887537 is about 26774.7555917883. The cubic root of 716887537 is about 894.9875832365.

The spelling of 716887537 in words is "seven hundred sixteen million, eight hundred eighty-seven thousand, five hundred thirty-seven".