47490902 has 4 divisors (see below), whose sum is σ = 71236356. Its totient is φ = 23745450.

The previous prime is 47490889. The next prime is 47490941. The reversal of 47490902 is 20909474.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20909474 = 2 ⋅10454737.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11872724 + ... + 11872727.

It is an arithmetic number, because the mean of its divisors is an integer number (17809089).

Almost surely, 2^47490902 is an apocalyptic number.

47490902 is a deficient number, since it is larger than the sum of its proper divisors (23745454).

47490902 is a wasteful number, since it uses less digits than its factorization.

47490902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23745453.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 47490902 is about 6891.3643061443. The cubic root of 47490902 is about 362.1346985071.

The spelling of 47490902 in words is "forty-seven million, four hundred ninety thousand, nine hundred two".