47000077 has 2 divisors, whose sum is σ = 47000078. Its totient is φ = 47000076.

The previous prime is 47000059. The next prime is 47000081. The reversal of 47000077 is 77000074.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30791401 + 16208676 = 5549^2 + 4026^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47000077 is a prime.

47000077 is a modest number, since divided by 77 gives 47 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47000377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23500038 + 23500039.

It is an arithmetic number, because the mean of its divisors is an integer number (23500039).

Almost surely, 2^47000077 is an apocalyptic number.

It is an amenable number.

47000077 is a deficient number, since it is larger than the sum of its proper divisors (1).

47000077 is an equidigital number, since it uses as much as digits as its factorization.

47000077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1372, while the sum is 25.

The square root of 47000077 is about 6855.6602162009. The cubic root of 47000077 is about 360.8828050915.

The spelling of 47000077 in words is "forty-seven million, seventy-seven", and thus it is an aban number and an uban number.