70447415 has 4 divisors (see below), whose sum is σ = 84536904. Its totient is φ = 56357928.

The previous prime is 70447411. The next prime is 70447427. The reversal of 70447415 is 51474407.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51474407 = 421 ⋅122267.

It is a cyclic number.

It is not a de Polignac number, because 70447415 - 2² = 70447411 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70447411) 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, 7044737 + ... + 7044746.

It is an arithmetic number, because the mean of its divisors is an integer number (21134226).

Almost surely, 2^70447415 is an apocalyptic number.

70447415 is a deficient number, since it is larger than the sum of its proper divisors (14089489).

70447415 is a wasteful number, since it uses less digits than its factorization.

70447415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14089488.

The product of its (nonzero) digits is 15680, while the sum is 32.

The square root of 70447415 is about 8393.2958365591. The cubic root of 70447415 is about 413.0047253063.

The spelling of 70447415 in words is "seventy million, four hundred forty-seven thousand, four hundred fifteen".