70744537 has 2 divisors, whose sum is σ = 70744538. Its totient is φ = 70744536.

The previous prime is 70744529. The next prime is 70744571. The reversal of 70744537 is 73544707.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46498761 + 24245776 = 6819^2 + 4924^2 .

It is a cyclic number.

It is not a de Polignac number, because 70744537 - 2³ = 70744529 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 70744496 and 70744505.

It is not a weakly prime, because it can be changed into another prime (70744507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35372268 + 35372269.

It is an arithmetic number, because the mean of its divisors is an integer number (35372269).

Almost surely, 2^70744537 is an apocalyptic number.

It is an amenable number.

70744537 is a deficient number, since it is larger than the sum of its proper divisors (1).

70744537 is an equidigital number, since it uses as much as digits as its factorization.

70744537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82320, while the sum is 37.

The square root of 70744537 is about 8410.9771727190. The cubic root of 70744537 is about 413.5845463144.

It can be divided in two parts, 7074 and 4537, that added together give a palindrome (11611).

The spelling of 70744537 in words is "seventy million, seven hundred forty-four thousand, five hundred thirty-seven".