28973924476 has 48 divisors (see below), whose sum is σ = 60403875840. Its totient is φ = 11897645760.

The previous prime is 28973924417. The next prime is 28973924477. The reversal of 28973924476 is 67442937982.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28973924477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29820 + ... + 242563.

It is an arithmetic number, because the mean of its divisors is an integer number (1258414080).

Almost surely, 2^28973924476 is an apocalyptic number.

It is an amenable number.

28973924476 is an abundant number, since it is smaller than the sum of its proper divisors (31429951364).

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

28973924476 is a wasteful number, since it uses less digits than its factorization.

28973924476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272554 (or 272552 counting only the distinct ones).

The product of its digits is 36578304, while the sum is 61.

The spelling of 28973924476 in words is "twenty-eight billion, nine hundred seventy-three million, nine hundred twenty-four thousand, four hundred seventy-six".