70398897 has 8 divisors (see below), whose sum is σ = 93917280. Its totient is φ = 46906560.

The previous prime is 70398877. The next prime is 70398899. The reversal of 70398897 is 79889307.

It is a happy number.

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

It is not a de Polignac number, because 70398897 - 2⁶ = 70398833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70398899) 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, 1054 + ... + 11912.

It is an arithmetic number, because the mean of its divisors is an integer number (11739660).

Almost surely, 2^70398897 is an apocalyptic number.

It is an amenable number.

70398897 is a deficient number, since it is larger than the sum of its proper divisors (23518383).

70398897 is a wasteful number, since it uses less digits than its factorization.

70398897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13023.

The product of its (nonzero) digits is 762048, while the sum is 51.

The square root of 70398897 is about 8390.4050557765. The cubic root of 70398897 is about 412.9098897225.

The spelling of 70398897 in words is "seventy million, three hundred ninety-eight thousand, eight hundred ninety-seven".