70404947 has 4 divisors (see below), whose sum is σ = 70421736. Its totient is φ = 70388160.

The previous prime is 70404941. The next prime is 70404959. The reversal of 70404947 is 74940407.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 74940407 = 5743 ⋅13049.

It is a cyclic number.

It is not a de Polignac number, because 70404947 - 2⁴ = 70404931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70404941) 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, 3848 + ... + 12474.

It is an arithmetic number, because the mean of its divisors is an integer number (17605434).

Almost surely, 2^70404947 is an apocalyptic number.

70404947 is a deficient number, since it is larger than the sum of its proper divisors (16789).

70404947 is an equidigital number, since it uses as much as digits as its factorization.

70404947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16788.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 70404947 is about 8390.7655788968. The cubic root of 70404947 is about 412.9217177169.

The spelling of 70404947 in words is "seventy million, four hundred four thousand, nine hundred forty-seven".