3691740 has 48 divisors (see below), whose sum is σ = 11134368. Its totient is φ = 908544.

The previous prime is 3691717. The next prime is 3691747. The reversal of 3691740 is 471963.

It is a happy number.

3691740 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 (30).

It is a junction number, because it is equal to n+sod(n) for n = 3691698 and 3691707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3691747) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1587 + ... + 3146.

It is an arithmetic number, because the mean of its divisors is an integer number (231966).

Almost surely, 2^3691740 is an apocalyptic number.

3691740 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3691740 is an abundant number, since it is smaller than the sum of its proper divisors (7442628).

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

3691740 is a wasteful number, since it uses less digits than its factorization.

3691740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4758 (or 4756 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 3691740 is about 1921.3901217608. The cubic root of 3691740 is about 154.5528563090.

The spelling of 3691740 in words is "three million, six hundred ninety-one thousand, seven hundred forty".