3690451 has 4 divisors (see below), whose sum is σ = 3780504. Its totient is φ = 3600400.

The previous prime is 3690437. The next prime is 3690473. The reversal of 3690451 is 1540963.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3690451 - 2¹⁷ = 3559379 is a prime.

It is a Duffinian number.

3690451 is a modest number, since divided by 451 gives 369 as remainder.

3690451 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3690151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44965 + ... + 45046.

It is an arithmetic number, because the mean of its divisors is an integer number (945126).

Almost surely, 2^3690451 is an apocalyptic number.

3690451 is a deficient number, since it is larger than the sum of its proper divisors (90053).

3690451 is an equidigital number, since it uses as much as digits as its factorization.

3690451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90052.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 3690451 is about 1921.0546582542. The cubic root of 3690451 is about 154.5348664341.

The spelling of 3690451 in words is "three million, six hundred ninety thousand, four hundred fifty-one".