49660247 has 32 divisors (see below), whose sum is σ = 66189312. Its totient is φ = 36140544.

The previous prime is 49660229. The next prime is 49660249. The reversal of 49660247 is 74206694.

It is a cyclic number.

It is not a de Polignac number, because 49660247 - 2¹² = 49656151 is a prime.

It is a super-2 number, since 2×49660247² = 4932280264202018, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 49660247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49660249) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72368 + ... + 73050.

It is an arithmetic number, because the mean of its divisors is an integer number (2068416).

Almost surely, 2^49660247 is an apocalyptic number.

49660247 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

49660247 is a deficient number, since it is larger than the sum of its proper divisors (16529065).

49660247 is a wasteful number, since it uses less digits than its factorization.

49660247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 49660247 is about 7047.0026961823. The cubic root of 49660247 is about 367.5668121697.

Subtracting from 49660247 its sum of digits (38), we obtain a square (49660209 = 7047²).

The spelling of 49660247 in words is "forty-nine million, six hundred sixty thousand, two hundred forty-seven".