70513669 has 2 divisors, whose sum is σ = 70513670. Its totient is φ = 70513668.

The previous prime is 70513661. The next prime is 70513759. The reversal of 70513669 is 96631507.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46376100 + 24137569 = 6810^2 + 4913^2 .

It is a cyclic number.

It is not a de Polignac number, because 70513669 - 2³ = 70513661 is a prime.

It is a super-2 number, since 2×70513669² = 9944355031683122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70513661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35256834 + 35256835.

It is an arithmetic number, because the mean of its divisors is an integer number (35256835).

Almost surely, 2^70513669 is an apocalyptic number.

It is an amenable number.

70513669 is a deficient number, since it is larger than the sum of its proper divisors (1).

70513669 is an equidigital number, since it uses as much as digits as its factorization.

70513669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 70513669 is about 8397.2417495270. The cubic root of 70513669 is about 413.1341582146.

The spelling of 70513669 in words is "seventy million, five hundred thirteen thousand, six hundred sixty-nine".