28737201 has 16 divisors (see below), whose sum is σ = 39378944. Its totient is φ = 18630864.

The previous prime is 28737169. The next prime is 28737211. The reversal of 28737201 is 10273782.

It is not a de Polignac number, because 28737201 - 2⁵ = 28737169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28737211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47040 + ... + 47646.

It is an arithmetic number, because the mean of its divisors is an integer number (2461184).

Almost surely, 2^28737201 is an apocalyptic number.

It is an amenable number.

28737201 is a deficient number, since it is larger than the sum of its proper divisors (10641743).

28737201 is a wasteful number, since it uses less digits than its factorization.

28737201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 28737201 is about 5360.7090016154. The cubic root of 28737201 is about 306.3008170012.

The spelling of 28737201 in words is "twenty-eight million, seven hundred thirty-seven thousand, two hundred one".