7617887401 has 2 divisors, whose sum is σ = 7617887402. Its totient is φ = 7617887400.

The previous prime is 7617887351. The next prime is 7617887437. The reversal of 7617887401 is 1047887167.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7263130176 + 354757225 = 85224^2 + 18835^2 .

It is a cyclic number.

It is not a de Polignac number, because 7617887401 - 2²¹ = 7615790249 is a prime.

It is not a weakly prime, because it can be changed into another prime (7617807401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3808943700 + 3808943701.

It is an arithmetic number, because the mean of its divisors is an integer number (3808943701).

Almost surely, 2^7617887401 is an apocalyptic number.

It is an amenable number.

7617887401 is a deficient number, since it is larger than the sum of its proper divisors (1).

7617887401 is an equidigital number, since it uses as much as digits as its factorization.

7617887401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 526848, while the sum is 49.

The square root of 7617887401 is about 87280.5098575850. The cubic root of 7617887401 is about 1967.6364071537.

The spelling of 7617887401 in words is "seven billion, six hundred seventeen million, eight hundred eighty-seven thousand, four hundred one".