8377961 has 4 divisors (see below), whose sum is σ = 8439252. Its totient is φ = 8316672.

The previous prime is 8377951. The next prime is 8377969. The reversal of 8377961 is 1697738.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7123561 + 1254400 = 2669^2 + 1120^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8377961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8377969) 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, 30440 + ... + 30713.

It is an arithmetic number, because the mean of its divisors is an integer number (2109813).

Almost surely, 2^8377961 is an apocalyptic number.

It is an amenable number.

8377961 is a deficient number, since it is larger than the sum of its proper divisors (61291).

8377961 is a wasteful number, since it uses less digits than its factorization.

8377961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61290.

The product of its digits is 63504, while the sum is 41.

The square root of 8377961 is about 2894.4707633694. The cubic root of 8377961 is about 203.1013350261.

The spelling of 8377961 in words is "eight million, three hundred seventy-seven thousand, nine hundred sixty-one".