3977401 has 2 divisors, whose sum is σ = 3977402. Its totient is φ = 3977400.

The previous prime is 3977387. The next prime is 3977411. The reversal of 3977401 is 1047793.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3701776 + 275625 = 1924^2 + 525^2 .

It is a cyclic number.

It is not a de Polignac number, because 3977401 - 2⁷ = 3977273 is a prime.

It is not a weakly prime, because it can be changed into another prime (3977411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1988700 + 1988701.

It is an arithmetic number, because the mean of its divisors is an integer number (1988701).

Almost surely, 2^3977401 is an apocalyptic number.

It is an amenable number.

3977401 is a deficient number, since it is larger than the sum of its proper divisors (1).

3977401 is an equidigital number, since it uses as much as digits as its factorization.

3977401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 3977401 is about 1994.3422474590. The cubic root of 3977401 is about 158.4405931274.

The spelling of 3977401 in words is "three million, nine hundred seventy-seven thousand, four hundred one".