70664199 has 4 divisors (see below), whose sum is σ = 94218936. Its totient is φ = 47109464.

The previous prime is 70664183. The next prime is 70664201. The reversal of 70664199 is 99146607.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 70664199 - 2⁴ = 70664183 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70664199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70664299) 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, 11777364 + ... + 11777369.

It is an arithmetic number, because the mean of its divisors is an integer number (23554734).

Almost surely, 2^70664199 is an apocalyptic number.

70664199 is a deficient number, since it is larger than the sum of its proper divisors (23554737).

70664199 is a wasteful number, since it uses less digits than its factorization.

70664199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23554736.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 70664199 is about 8406.2000333087. The cubic root of 70664199 is about 413.4279304961.

The spelling of 70664199 in words is "seventy million, six hundred sixty-four thousand, one hundred ninety-nine".