70169709 has 8 divisors (see below), whose sum is σ = 96577792. Its totient is φ = 45270720.

The previous prime is 70169699. The next prime is 70169719. The reversal of 70169709 is 90796107.

It is an interprime number because it is at equal distance from previous prime (70169699) and next prime (70169719).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 70169709 - 2⁸ = 70169453 is a prime.

It is a super-2 number, since 2×70169709² = 9847576122289362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70169719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 377164 + ... + 377349.

It is an arithmetic number, because the mean of its divisors is an integer number (12072224).

Almost surely, 2^70169709 is an apocalyptic number.

It is an amenable number.

70169709 is a deficient number, since it is larger than the sum of its proper divisors (26408083).

70169709 is a wasteful number, since it uses less digits than its factorization.

70169709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754547.

The product of its (nonzero) digits is 23814, while the sum is 39.

The square root of 70169709 is about 8376.7361782499. The cubic root of 70169709 is about 412.4613179521.

The spelling of 70169709 in words is "seventy million, one hundred sixty-nine thousand, seven hundred nine".