70404413 has 4 divisors (see below), whose sum is σ = 70422300. Its totient is φ = 70386528.

The previous prime is 70404391. The next prime is 70404419. The reversal of 70404413 is 31440407.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31440407 = 89 ⋅353263.

It can be written as a sum of positive squares in 2 ways, for example, as 8514724 + 61889689 = 2918^2 + 7867^2 .

It is a cyclic number.

It is not a de Polignac number, because 70404413 - 2⁶ = 70404349 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70404419) 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, 170 + ... + 11867.

It is an arithmetic number, because the mean of its divisors is an integer number (17605575).

Almost surely, 2^70404413 is an apocalyptic number.

It is an amenable number.

70404413 is a deficient number, since it is larger than the sum of its proper divisors (17887).

70404413 is a wasteful number, since it uses less digits than its factorization.

70404413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17886.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 70404413 is about 8390.7337581406. The cubic root of 70404413 is about 412.9206737526.

The spelling of 70404413 in words is "seventy million, four hundred four thousand, four hundred thirteen".