47139653 has 8 divisors (see below), whose sum is σ = 52621536. Its totient is φ = 41857200.

The previous prime is 47139647. The next prime is 47139661. The reversal of 47139653 is 35693174.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-47139653 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47139613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49358 + ... + 50303.

It is an arithmetic number, because the mean of its divisors is an integer number (6577692).

Almost surely, 2^47139653 is an apocalyptic number.

47139653 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

47139653 is a deficient number, since it is larger than the sum of its proper divisors (5481883).

47139653 is a wasteful number, since it uses less digits than its factorization.

47139653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99715.

The product of its digits is 68040, while the sum is 38.

The square root of 47139653 is about 6865.8322874944. The cubic root of 47139653 is about 361.2396896041.

The spelling of 47139653 in words is "forty-seven million, one hundred thirty-nine thousand, six hundred fifty-three".