8615401 has 8 divisors (see below), whose sum is σ = 8765064. Its totient is φ = 8467200.

The previous prime is 8615389. The next prime is 8615423. The reversal of 8615401 is 1045168.

8615401 = 2075² + 2076².

It can be written as a sum of positive squares in 4 ways, for example, as 4305625 + 4309776 = 2075^2 + 2076^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8615401 - 2⁷ = 8615273 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8615461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19681 + ... + 20113.

It is an arithmetic number, because the mean of its divisors is an integer number (1095633).

Almost surely, 2^8615401 is an apocalyptic number.

8615401 is the 2076-th centered square number.

It is an amenable number.

8615401 is a deficient number, since it is larger than the sum of its proper divisors (149663).

8615401 is a wasteful number, since it uses less digits than its factorization.

8615401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 8615401 is about 2935.2003338784. The cubic root of 8615401 is about 205.0021891497.

The spelling of 8615401 in words is "eight million, six hundred fifteen thousand, four hundred one".