47420651 has 4 divisors (see below), whose sum is σ = 47518512. Its totient is φ = 47322792.

The previous prime is 47420647. The next prime is 47420671. The reversal of 47420651 is 15602474.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15602474 = 2 ⋅7801237.

It is a cyclic number.

It is not a de Polignac number, because 47420651 - 2² = 47420647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47420621) 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, 48200 + ... + 49173.

It is an arithmetic number, because the mean of its divisors is an integer number (11879628).

Almost surely, 2^47420651 is an apocalyptic number.

47420651 is a deficient number, since it is larger than the sum of its proper divisors (97861).

47420651 is an equidigital number, since it uses as much as digits as its factorization.

47420651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97860.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 47420651 is about 6886.2653884381. The cubic root of 47420651 is about 361.9560475925.

The spelling of 47420651 in words is "forty-seven million, four hundred twenty thousand, six hundred fifty-one".