70400297 has 8 divisors (see below), whose sum is σ = 77773440. Its totient is φ = 63189360.

The previous prime is 70400293. The next prime is 70400357. The reversal of 70400297 is 79200407.

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

It is a cyclic number.

It is not a de Polignac number, because 70400297 - 2² = 70400293 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70400293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39638 + ... + 41375.

It is an arithmetic number, because the mean of its divisors is an integer number (9721680).

Almost surely, 2^70400297 is an apocalyptic number.

It is an amenable number.

70400297 is a deficient number, since it is larger than the sum of its proper divisors (7373143).

70400297 is a wasteful number, since it uses less digits than its factorization.

70400297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81103.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 70400297 is about 8390.4884839919. The cubic root of 70400297 is about 412.9126268393.

The spelling of 70400297 in words is "seventy million, four hundred thousand, two hundred ninety-seven".