28920754 has 8 divisors (see below), whose sum is σ = 44553708. Its totient is φ = 14069520.

The previous prime is 28920719. The next prime is 28920761. The reversal of 28920754 is 45702982.

It can be written as a sum of positive squares in 2 ways, for example, as 19758025 + 9162729 = 4445^2 + 3027^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195337 + ... + 195484.

Almost surely, 2^28920754 is an apocalyptic number.

28920754 is a deficient number, since it is larger than the sum of its proper divisors (15632954).

28920754 is a wasteful number, since it uses less digits than its factorization.

28920754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390860.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 28920754 is about 5377.8019673469. The cubic root of 28920754 is about 306.9515780562.

The spelling of 28920754 in words is "twenty-eight million, nine hundred twenty thousand, seven hundred fifty-four".