70642983 has 4 divisors (see below), whose sum is σ = 94190648. Its totient is φ = 47095320.

The previous prime is 70642963. The next prime is 70643029. The reversal of 70642983 is 38924607.

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

It is not a de Polignac number, because 70642983 - 2¹⁰ = 70641959 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 (70642963) 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, 11773828 + ... + 11773833.

It is an arithmetic number, because the mean of its divisors is an integer number (23547662).

Almost surely, 2^70642983 is an apocalyptic number.

70642983 is a deficient number, since it is larger than the sum of its proper divisors (23547665).

70642983 is a wasteful number, since it uses less digits than its factorization.

70642983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23547664.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 70642983 is about 8404.9380128589. The cubic root of 70642983 is about 413.3865509146.

The spelling of 70642983 in words is "seventy million, six hundred forty-two thousand, nine hundred eighty-three".