28951292 has 6 divisors (see below), whose sum is σ = 50664768. Its totient is φ = 14475644.

The previous prime is 28951291. The next prime is 28951297. The reversal of 28951292 is 29215982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28951291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3618908 + ... + 3618915.

It is an arithmetic number, because the mean of its divisors is an integer number (8444128).

Almost surely, 2^28951292 is an apocalyptic number.

It is an amenable number.

28951292 is a deficient number, since it is larger than the sum of its proper divisors (21713476).

28951292 is a wasteful number, since it uses less digits than its factorization.

28951292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7237827 (or 7237825 counting only the distinct ones).

The product of its digits is 25920, while the sum is 38.

The square root of 28951292 is about 5380.6404823218. The cubic root of 28951292 is about 307.0595788128.

The spelling of 28951292 in words is "twenty-eight million, nine hundred fifty-one thousand, two hundred ninety-two".