3977698 has 8 divisors (see below), whose sum is σ = 6172380. Its totient is φ = 1920240.

The previous prime is 3977693. The next prime is 3977717. The reversal of 3977698 is 8967793.

It can be written as a sum of positive squares in 2 ways, for example, as 3908529 + 69169 = 1977^2 + 263^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (3977693) 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, 34233 + ... + 34348.

Almost surely, 2^3977698 is an apocalyptic number.

3977698 is a deficient number, since it is larger than the sum of its proper divisors (2194682).

3977698 is a wasteful number, since it uses less digits than its factorization.

3977698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68612.

The product of its digits is 571536, while the sum is 49.

The square root of 3977698 is about 1994.4167067090. The cubic root of 3977698 is about 158.4445367148. Note that the first 3 decimals are identical.

The spelling of 3977698 in words is "three million, nine hundred seventy-seven thousand, six hundred ninety-eight".