70297669 has 16 divisors (see below), whose sum is σ = 82334448. Its totient is φ = 59415552.

The previous prime is 70297651. The next prime is 70297679. The reversal of 70297669 is 96679207.

It can be written as a sum of positive squares in 8 ways, for example, as 5688225 + 64609444 = 2385^2 + 8038^2 .

It is a cyclic number.

It is not a de Polignac number, because 70297669 - 2¹⁹ = 69773381 is a prime.

It is a super-2 number, since 2×70297669² = 9883524533667122, 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 (70297679) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3879 + ... + 12475.

It is an arithmetic number, because the mean of its divisors is an integer number (5145903).

Almost surely, 2^70297669 is an apocalyptic number.

It is an amenable number.

70297669 is a deficient number, since it is larger than the sum of its proper divisors (12036779).

70297669 is a wasteful number, since it uses less digits than its factorization.

70297669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8664.

The product of its (nonzero) digits is 285768, while the sum is 46.

The square root of 70297669 is about 8384.3705190074. The cubic root of 70297669 is about 412.7118842887.

The spelling of 70297669 in words is "seventy million, two hundred ninety-seven thousand, six hundred sixty-nine".