3766989 has 4 divisors (see below), whose sum is σ = 5022656. Its totient is φ = 2511324.

The previous prime is 3766969. The next prime is 3766993. The reversal of 3766989 is 9896673.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9896673 = 3 ⋅3298891.

It is not a de Polignac number, because 3766989 - 2²⁰ = 2718413 is a prime.

It is a super-2 number, since 2×3766989² = 28380412252242, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3766969) 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, 627829 + ... + 627834.

It is an arithmetic number, because the mean of its divisors is an integer number (1255664).

Almost surely, 2^3766989 is an apocalyptic number.

It is an amenable number.

3766989 is a deficient number, since it is larger than the sum of its proper divisors (1255667).

3766989 is a wasteful number, since it uses less digits than its factorization.

3766989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255666.

The product of its digits is 489888, while the sum is 48.

The square root of 3766989 is about 1940.8732570675. The cubic root of 3766989 is about 155.5958886532.

The spelling of 3766989 in words is "three million, seven hundred sixty-six thousand, nine hundred eighty-nine".