877401901 has 2 divisors, whose sum is σ = 877401902. Its totient is φ = 877401900.

The previous prime is 877401859. The next prime is 877401911. The reversal of 877401901 is 109104778.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 546343876 + 331058025 = 23374^2 + 18195^2 .

It is a cyclic number.

It is not a de Polignac number, because 877401901 - 2¹³ = 877393709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (877401911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 438700950 + 438700951.

It is an arithmetic number, because the mean of its divisors is an integer number (438700951).

Almost surely, 2^877401901 is an apocalyptic number.

It is an amenable number.

877401901 is a deficient number, since it is larger than the sum of its proper divisors (1).

877401901 is an equidigital number, since it uses as much as digits as its factorization.

877401901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 37.

The square root of 877401901 is about 29620.9706289311. The cubic root of 877401901 is about 957.3399673006.

The spelling of 877401901 in words is "eight hundred seventy-seven million, four hundred one thousand, nine hundred one".