2375661 has 4 divisors (see below), whose sum is σ = 3167552. Its totient is φ = 1583772.

The previous prime is 2375641. The next prime is 2375671. The reversal of 2375661 is 1665732.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2375661 - 2¹⁷ = 2244589 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2375641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 395941 + ... + 395946.

It is an arithmetic number, because the mean of its divisors is an integer number (791888).

2^2375661 is an apocalyptic number.

It is an amenable number.

2375661 is a deficient number, since it is larger than the sum of its proper divisors (791891).

2375661 is an equidigital number, since it uses as much as digits as its factorization.

2375661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791890.

The product of its digits is 7560, while the sum is 30.

The square root of 2375661 is about 1541.3179425414. The cubic root of 2375661 is about 133.4324589265.

The spelling of 2375661 in words is "two million, three hundred seventy-five thousand, six hundred sixty-one".