79820429 has 8 divisors (see below), whose sum is σ = 87790080. Its totient is φ = 72112176.

The previous prime is 79820393. The next prime is 79820437. The reversal of 79820429 is 92402897.

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 79820429 - 2¹² = 79816333 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 (79820459) 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, 64709 + ... + 65930.

It is an arithmetic number, because the mean of its divisors is an integer number (10973760).

Almost surely, 2^79820429 is an apocalyptic number.

It is an amenable number.

79820429 is a deficient number, since it is larger than the sum of its proper divisors (7969651).

79820429 is a wasteful number, since it uses less digits than its factorization.

79820429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130699.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 79820429 is about 8934.2279464988. The cubic root of 79820429 is about 430.5643014921.

The spelling of 79820429 in words is "seventy-nine million, eight hundred twenty thousand, four hundred twenty-nine".