70540079 has 8 divisors (see below), whose sum is σ = 71737008. Its totient is φ = 69347520.

The previous prime is 70540061. The next prime is 70540109. The reversal of 70540079 is 97004507.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70540079 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 (70540009) 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, 52739 + ... + 54059.

It is an arithmetic number, because the mean of its divisors is an integer number (8967126).

Almost surely, 2^70540079 is an apocalyptic number.

70540079 is a deficient number, since it is larger than the sum of its proper divisors (1196929).

70540079 is a wasteful number, since it uses less digits than its factorization.

70540079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2185.

The product of its (nonzero) digits is 8820, while the sum is 32.

The square root of 70540079 is about 8398.8141424846. The cubic root of 70540079 is about 413.1857298290.

The spelling of 70540079 in words is "seventy million, five hundred forty thousand, seventy-nine".