47620139 has 8 divisors (see below), whose sum is σ = 55345920. Its totient is φ = 40125096.

The previous prime is 47620087. The next prime is 47620151. The reversal of 47620139 is 93102674.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47620139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47620169) 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, 57239 + ... + 58064.

It is an arithmetic number, because the mean of its divisors is an integer number (6918240).

Almost surely, 2^47620139 is an apocalyptic number.

47620139 is a deficient number, since it is larger than the sum of its proper divisors (7725781).

47620139 is a wasteful number, since it uses less digits than its factorization.

47620139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115369.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 47620139 is about 6900.7346710332. The cubic root of 47620139 is about 362.4628933877.

The spelling of 47620139 in words is "forty-seven million, six hundred twenty thousand, one hundred thirty-nine".