71790079 has 8 divisors (see below), whose sum is σ = 75363840. Its totient is φ = 68295000.

The previous prime is 71790071. The next prime is 71790083. The reversal of 71790079 is 97009717.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 71790079 - 2³ = 71790071 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 (71790071) 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, 17797 + ... + 21454.

It is an arithmetic number, because the mean of its divisors is an integer number (9420480).

Almost surely, 2^71790079 is an apocalyptic number.

71790079 is a deficient number, since it is larger than the sum of its proper divisors (3573761).

71790079 is a wasteful number, since it uses less digits than its factorization.

71790079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39341.

The product of its (nonzero) digits is 27783, while the sum is 40.

The square root of 71790079 is about 8472.9026313301. The cubic root of 71790079 is about 415.6120624537.

The spelling of 71790079 in words is "seventy-one million, seven hundred ninety thousand, seventy-nine".