28937701 has 12 divisors (see below), whose sum is σ = 31727808. Its totient is φ = 26377104.

The previous prime is 28937693. The next prime is 28937717. The reversal of 28937701 is 10773982.

It is not a de Polignac number, because 28937701 - 2³ = 28937693 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 (28937731) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12996 + ... + 15058.

It is an arithmetic number, because the mean of its divisors is an integer number (2643984).

Almost surely, 2^28937701 is an apocalyptic number.

It is an amenable number.

28937701 is a deficient number, since it is larger than the sum of its proper divisors (2790107).

28937701 is a wasteful number, since it uses less digits than its factorization.

28937701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2172 (or 2159 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 28937701 is about 5379.3773803294. The cubic root of 28937701 is about 307.0115222362.

The spelling of 28937701 in words is "twenty-eight million, nine hundred thirty-seven thousand, seven hundred one".