6237661 has 4 divisors (see below), whose sum is σ = 6264000. Its totient is φ = 6211324.

The previous prime is 6237641. The next prime is 6237667. The reversal of 6237661 is 1667326.

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 a cyclic number.

It is not a de Polignac number, because 6237661 - 2⁵ = 6237629 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 (6237667) 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, 12811 + ... + 13288.

It is an arithmetic number, because the mean of its divisors is an integer number (1566000).

Almost surely, 2^6237661 is an apocalyptic number.

It is an amenable number.

6237661 is a deficient number, since it is larger than the sum of its proper divisors (26339).

6237661 is a wasteful number, since it uses less digits than its factorization.

6237661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26338.

The product of its digits is 9072, while the sum is 31.

The square root of 6237661 is about 2497.5309807888. The cubic root of 6237661 is about 184.0802756999.

The spelling of 6237661 in words is "six million, two hundred thirty-seven thousand, six hundred sixty-one".