28738692 has 24 divisors (see below), whose sum is σ = 74508000. Its totient is φ = 9579528.

The previous prime is 28738691. The next prime is 28738711. The reversal of 28738692 is 29683782.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (28738691) 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, 132942 + ... + 133157.

It is an arithmetic number, because the mean of its divisors is an integer number (3104500).

Almost surely, 2^28738692 is an apocalyptic number.

It is an amenable number.

28738692 is an abundant number, since it is smaller than the sum of its proper divisors (45769308).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28738692 is a wasteful number, since it uses less digits than its factorization.

28738692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266112 (or 266104 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 28738692 is about 5360.8480672371. The cubic root of 28738692 is about 306.3061142767.

It can be divided in two parts, 28 and 738692, that added together give a triangular number (738720 = T₁₂₁₅).

The spelling of 28738692 in words is "twenty-eight million, seven hundred thirty-eight thousand, six hundred ninety-two".