47487490 has 8 divisors (see below), whose sum is σ = 85477500. Its totient is φ = 18994992.

The previous prime is 47487481. The next prime is 47487509. The reversal of 47487490 is 9478474.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 45981961 + 1505529 = 6781^2 + 1227^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 2374365 + ... + 2374384.

Almost surely, 2^47487490 is an apocalyptic number.

47487490 is a deficient number, since it is larger than the sum of its proper divisors (37990010).

47487490 is a wasteful number, since it uses less digits than its factorization.

47487490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4748756.

The product of its (nonzero) digits is 225792, while the sum is 43.

The square root of 47487490 is about 6891.1167454920. The cubic root of 47487490 is about 362.1260257359.

The spelling of 47487490 in words is "forty-seven million, four hundred eighty-seven thousand, four hundred ninety".