70642311 has 8 divisors (see below), whose sum is σ = 94350960. Its totient is φ = 47014272.

The previous prime is 70642291. The next prime is 70642333. The reversal of 70642311 is 11324607.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 70642311 - 2⁷ = 70642183 is a prime.

It is a super-2 number, since 2×70642311² = 9980672206841442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70642391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18076 + ... + 21633.

It is an arithmetic number, because the mean of its divisors is an integer number (11793870).

Almost surely, 2^70642311 is an apocalyptic number.

70642311 is a deficient number, since it is larger than the sum of its proper divisors (23708649).

70642311 is a wasteful number, since it uses less digits than its factorization.

70642311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40305.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 70642311 is about 8404.8980362643. The cubic root of 70642311 is about 413.3852401138.

Adding to 70642311 its reverse (11324607), we get a palindrome (81966918).

The spelling of 70642311 in words is "seventy million, six hundred forty-two thousand, three hundred eleven".