3776981 has 6 divisors (see below), whose sum is σ = 4090050. Its totient is φ = 3486288.

The previous prime is 3776957. The next prime is 3776999. The reversal of 3776981 is 1896773.

It can be written as a sum of positive squares in 3 ways, for example, as 128881 + 3648100 = 359^2 + 1910^2 .

It is a de Polignac number, because none of the positive numbers 2^k-3776981 is a prime.

It is a super-2 number, since 2×3776981² = 28531170948722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3776081) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11006 + ... + 11343.

It is an arithmetic number, because the mean of its divisors is an integer number (681675).

Almost surely, 2^3776981 is an apocalyptic number.

It is an amenable number.

3776981 is a deficient number, since it is larger than the sum of its proper divisors (313069).

3776981 is a wasteful number, since it uses less digits than its factorization.

3776981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22375 (or 22362 counting only the distinct ones).

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

The square root of 3776981 is about 1943.4456514140. The cubic root of 3776981 is about 155.7333407409.

The spelling of 3776981 in words is "three million, seven hundred seventy-six thousand, nine hundred eighty-one".