47498687 has 4 divisors (see below), whose sum is σ = 48277416. Its totient is φ = 46719960.

The previous prime is 47498609. The next prime is 47498699. The reversal of 47498687 is 78689474.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 47498687 - 2⁸ = 47498431 is a prime.

It is a super-2 number, since 2×47498687² = 4512250533447938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47498287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 389273 + ... + 389394.

It is an arithmetic number, because the mean of its divisors is an integer number (12069354).

Almost surely, 2^47498687 is an apocalyptic number.

47498687 is a deficient number, since it is larger than the sum of its proper divisors (778729).

47498687 is an equidigital number, since it uses as much as digits as its factorization.

47498687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778728.

The product of its digits is 2709504, while the sum is 53.

The square root of 47498687 is about 6891.9291203552. The cubic root of 47498687 is about 362.1544852065.

The spelling of 47498687 in words is "forty-seven million, four hundred ninety-eight thousand, six hundred eighty-seven".