3691974 has 48 divisors (see below), whose sum is σ = 8748864. Its totient is φ = 1029600.

The previous prime is 3691957. The next prime is 3692021. The reversal of 3691974 is 4791963.

3691974 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10989 + ... + 11319.

It is an arithmetic number, because the mean of its divisors is an integer number (182268).

Almost surely, 2^3691974 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3691974, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4374432).

3691974 is an abundant number, since it is smaller than the sum of its proper divisors (5056890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3691974 is a wasteful number, since it uses less digits than its factorization.

3691974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373 (or 360 counting only the distinct ones).

The product of its digits is 40824, while the sum is 39.

The square root of 3691974 is about 1921.4510142078. The cubic root of 3691974 is about 154.5561216712.

The spelling of 3691974 in words is "three million, six hundred ninety-one thousand, nine hundred seventy-four".