28471702 has 48 divisors (see below), whose sum is σ = 53756928. Its totient is φ = 11064960.

The previous prime is 28471693. The next prime is 28471727. The reversal of 28471702 is 20717482.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 125313 + ... + 125539.

It is an arithmetic number, because the mean of its divisors is an integer number (1119936).

Almost surely, 2^28471702 is an apocalyptic number.

28471702 is a deficient number, since it is larger than the sum of its proper divisors (25285226).

28471702 is a wasteful number, since it uses less digits than its factorization.

28471702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301 (or 284 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 28471702 is about 5335.8881172678. Note that the first 3 decimals coincide. The cubic root of 28471702 is about 305.3546068183.

The spelling of 28471702 in words is "twenty-eight million, four hundred seventy-one thousand, seven hundred two".