8701213537 has 2 divisors, whose sum is σ = 8701213538. Its totient is φ = 8701213536.

The previous prime is 8701213531. The next prime is 8701213597. The reversal of 8701213537 is 7353121078.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7701642081 + 999571456 = 87759^2 + 31616^2 .

It is a cyclic number.

It is not a de Polignac number, because 8701213537 - 2²³ = 8692824929 is a prime.

It is a super-2 number, since 2×8701213537² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8701213496 and 8701213505.

It is not a weakly prime, because it can be changed into another prime (8701213531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4350606768 + 4350606769.

It is an arithmetic number, because the mean of its divisors is an integer number (4350606769).

Almost surely, 2^8701213537 is an apocalyptic number.

It is an amenable number.

8701213537 is a deficient number, since it is larger than the sum of its proper divisors (1).

8701213537 is an equidigital number, since it uses as much as digits as its factorization.

8701213537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 8701213537 is about 93280.2955452008. The cubic root of 8701213537 is about 2056.8057398759.

The spelling of 8701213537 in words is "eight billion, seven hundred one million, two hundred thirteen thousand, five hundred thirty-seven".