28537948 has 12 divisors (see below), whose sum is σ = 50069992. Its totient is φ = 14232240.

The previous prime is 28537937. The next prime is 28537969. The reversal of 28537948 is 84973582.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 28537898 and 28537907.

It is a congruent number.

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, 7398 + ... + 10573.

Almost surely, 2^28537948 is an apocalyptic number.

It is an amenable number.

28537948 is a deficient number, since it is larger than the sum of its proper divisors (21532044).

28537948 is a wasteful number, since it uses less digits than its factorization.

28537948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18372 (or 18370 counting only the distinct ones).

The product of its digits is 483840, while the sum is 46.

The square root of 28537948 is about 5342.0920995430. The cubic root of 28537948 is about 305.5912494182.

It can be divided in two parts, 2853 and 7948, that added together give a palindrome (10801).

The spelling of 28537948 in words is "twenty-eight million, five hundred thirty-seven thousand, nine hundred forty-eight".