47918077 has 2 divisors, whose sum is σ = 47918078. Its totient is φ = 47918076.

The previous prime is 47918041. The next prime is 47918093. The reversal of 47918077 is 77081974.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35450116 + 12467961 = 5954^2 + 3531^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47918077 is a prime.

It is a super-2 number, since 2×47918077² = 4592284206755858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47918027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23959038 + 23959039.

It is an arithmetic number, because the mean of its divisors is an integer number (23959039).

Almost surely, 2^47918077 is an apocalyptic number.

It is an amenable number.

47918077 is a deficient number, since it is larger than the sum of its proper divisors (1).

47918077 is an equidigital number, since it uses as much as digits as its factorization.

47918077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 98784, while the sum is 43.

The square root of 47918077 is about 6922.2884221910. The cubic root of 47918077 is about 363.2172453152.

The spelling of 47918077 in words is "forty-seven million, nine hundred eighteen thousand, seventy-seven".