28979701 has 8 divisors (see below), whose sum is σ = 30297024. Its totient is φ = 27667200.

The previous prime is 28979659. The next prime is 28979719. The reversal of 28979701 is 10797982.

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 28979701 - 2¹⁵ = 28946933 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 (28979791) 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, 17301 + ... + 18901.

It is an arithmetic number, because the mean of its divisors is an integer number (3787128).

Almost surely, 2^28979701 is an apocalyptic number.

It is an amenable number.

28979701 is a deficient number, since it is larger than the sum of its proper divisors (1317323).

28979701 is a wasteful number, since it uses less digits than its factorization.

28979701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2411.

The product of its (nonzero) digits is 63504, while the sum is 43.

The square root of 28979701 is about 5383.2797623753. The cubic root of 28979701 is about 307.1599819755.

The spelling of 28979701 in words is "twenty-eight million, nine hundred seventy-nine thousand, seven hundred one".