71877401 has 2 divisors, whose sum is σ = 71877402. Its totient is φ = 71877400.

The previous prime is 71877391. The next prime is 71877409. The reversal of 71877401 is 10477817.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64320400 + 7557001 = 8020^2 + 2749^2 .

It is a cyclic number.

It is not a de Polignac number, because 71877401 - 2¹⁰ = 71876377 is a prime.

It is not a weakly prime, because it can be changed into another prime (71877409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35938700 + 35938701.

It is an arithmetic number, because the mean of its divisors is an integer number (35938701).

Almost surely, 2^71877401 is an apocalyptic number.

It is an amenable number.

71877401 is a deficient number, since it is larger than the sum of its proper divisors (1).

71877401 is an equidigital number, since it uses as much as digits as its factorization.

71877401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10976, while the sum is 35.

The square root of 71877401 is about 8478.0540809787. The cubic root of 71877401 is about 415.7805043531.

The spelling of 71877401 in words is "seventy-one million, eight hundred seventy-seven thousand, four hundred one".