47109428 has 12 divisors (see below), whose sum is σ = 86026080. Its totient is φ = 22530552.

The previous prime is 47109409. The next prime is 47109443. The reversal of 47109428 is 82490174.

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, 255938 + ... + 256121.

It is an arithmetic number, because the mean of its divisors is an integer number (7168840).

Almost surely, 2^47109428 is an apocalyptic number.

It is an amenable number.

47109428 is a deficient number, since it is larger than the sum of its proper divisors (38916652).

47109428 is a wasteful number, since it uses less digits than its factorization.

47109428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512086 (or 512084 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 47109428 is about 6863.6308175775. The cubic root of 47109428 is about 361.1624665493.

The spelling of 47109428 in words is "forty-seven million, one hundred nine thousand, four hundred twenty-eight".