47313428 has 6 divisors (see below), whose sum is σ = 82798506. Its totient is φ = 23656712.

The previous prime is 47313421. The next prime is 47313449. The reversal of 47313428 is 82431374.

It can be written as a sum of positive squares in only one way, i.e., 45995524 + 1317904 = 6782^2 + 1148^2 .

It is a super-2 number, since 2×47313428² = 4477120938222368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 47313394 and 47313403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47313421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5914175 + ... + 5914182.

It is an arithmetic number, because the mean of its divisors is an integer number (13799751).

Almost surely, 2^47313428 is an apocalyptic number.

It is an amenable number.

47313428 is a deficient number, since it is larger than the sum of its proper divisors (35485078).

47313428 is a wasteful number, since it uses less digits than its factorization.

47313428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11828361 (or 11828359 counting only the distinct ones).

The product of its digits is 16128, while the sum is 32.

The square root of 47313428 is about 6878.4757032354. The cubic root of 47313428 is about 361.6830350236.

The spelling of 47313428 in words is "forty-seven million, three hundred thirteen thousand, four hundred twenty-eight".