28932207 has 8 divisors (see below), whose sum is σ = 39820800. Its totient is φ = 18665880.

The previous prime is 28932191. The next prime is 28932247. The reversal of 28932207 is 70223982.

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

It is not a de Polignac number, because 28932207 - 2⁴ = 28932191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28932247) 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, 155457 + ... + 155642.

It is an arithmetic number, because the mean of its divisors is an integer number (4977600).

Almost surely, 2^28932207 is an apocalyptic number.

28932207 is a deficient number, since it is larger than the sum of its proper divisors (10888593).

28932207 is a wasteful number, since it uses less digits than its factorization.

28932207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311133.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 28932207 is about 5378.8667021967. The cubic root of 28932207 is about 306.9920916664.

The spelling of 28932207 in words is "twenty-eight million, nine hundred thirty-two thousand, two hundred seven".