28922967 has 32 divisors (see below), whose sum is σ = 46157760. Its totient is φ = 17832960.

The previous prime is 28922963. The next prime is 28922977. The reversal of 28922967 is 76922982.

It is not a de Polignac number, because 28922967 - 2² = 28922963 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28922963) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27483 + ... + 28515.

It is an arithmetic number, because the mean of its divisors is an integer number (1442430).

Almost surely, 2^28922967 is an apocalyptic number.

28922967 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

28922967 is a deficient number, since it is larger than the sum of its proper divisors (17234793).

28922967 is a wasteful number, since it uses less digits than its factorization.

28922967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120 (or 1114 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 28922967 is about 5378.0077166177. The cubic root of 28922967 is about 306.9594071112.

The spelling of 28922967 in words is "twenty-eight million, nine hundred twenty-two thousand, nine hundred sixty-seven".