70322397 has 4 divisors (see below), whose sum is σ = 93763200. Its totient is φ = 46881596.

The previous prime is 70322393. The next prime is 70322407. The reversal of 70322397 is 79322307.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 79322307 = 3 ⋅26440769.

It is a cyclic number.

It is not a de Polignac number, because 70322397 - 2² = 70322393 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70322393) 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 3 ways as a sum of consecutive naturals, for example, 11720397 + ... + 11720402.

It is an arithmetic number, because the mean of its divisors is an integer number (23440800).

Almost surely, 2^70322397 is an apocalyptic number.

It is an amenable number.

70322397 is a deficient number, since it is larger than the sum of its proper divisors (23440803).

70322397 is a wasteful number, since it uses less digits than its factorization.

70322397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23440802.

The product of its (nonzero) digits is 15876, while the sum is 33.

The square root of 70322397 is about 8385.8450379196. The cubic root of 70322397 is about 412.7602706397.

The spelling of 70322397 in words is "seventy million, three hundred twenty-two thousand, three hundred ninety-seven".