70121607 has 4 divisors (see below), whose sum is σ = 93495480. Its totient is φ = 46747736.

The previous prime is 70121599. The next prime is 70121627. The reversal of 70121607 is 70612107.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70612107 = 3 ⋅23537369.

It is a cyclic number.

It is not a de Polignac number, because 70121607 - 2³ = 70121599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70121627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11686932 + ... + 11686937.

It is an arithmetic number, because the mean of its divisors is an integer number (23373870).

Almost surely, 2^70121607 is an apocalyptic number.

70121607 is a deficient number, since it is larger than the sum of its proper divisors (23373873).

70121607 is a wasteful number, since it uses less digits than its factorization.

70121607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23373872.

The product of its (nonzero) digits is 588, while the sum is 24.

The square root of 70121607 is about 8373.8645200409. The cubic root of 70121607 is about 412.3670476947.

The spelling of 70121607 in words is "seventy million, one hundred twenty-one thousand, six hundred seven".