47931077 has 2 divisors, whose sum is σ = 47931078. Its totient is φ = 47931076.

The previous prime is 47931071. The next prime is 47931101. The reversal of 47931077 is 77013974.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31292836 + 16638241 = 5594^2 + 4079^2 .

It is a cyclic number.

It is not a de Polignac number, because 47931077 - 2⁴ = 47931061 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47931077.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47931071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23965538 + 23965539.

It is an arithmetic number, because the mean of its divisors is an integer number (23965539).

Almost surely, 2^47931077 is an apocalyptic number.

It is an amenable number.

47931077 is a deficient number, since it is larger than the sum of its proper divisors (1).

47931077 is an equidigital number, since it uses as much as digits as its factorization.

47931077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37044, while the sum is 38.

The square root of 47931077 is about 6923.2273543485. The cubic root of 47931077 is about 363.2500888511.

The spelling of 47931077 in words is "forty-seven million, nine hundred thirty-one thousand, seventy-seven".