47742615 has 20 divisors (see below), whose sum is σ = 85583784. Its totient is φ = 25462512.

The previous prime is 47742593. The next prime is 47742631. The reversal of 47742615 is 51624774.

It is not a de Polignac number, because 47742615 - 2¹⁰ = 47741591 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 47742615.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 58537 + ... + 59346.

Almost surely, 2^47742615 is an apocalyptic number.

47742615 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

47742615 is a deficient number, since it is larger than the sum of its proper divisors (37841169).

47742615 is a wasteful number, since it uses less digits than its factorization.

47742615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117900 (or 117891 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 47742615 is about 6909.6031000340. The cubic root of 47742615 is about 362.7733712785.

The spelling of 47742615 in words is "forty-seven million, seven hundred forty-two thousand, six hundred fifteen".