3890515 has 8 divisors (see below), whose sum is σ = 4700448. Its totient is φ = 3091200.

The previous prime is 3890507. The next prime is 3890521. The reversal of 3890515 is 5150983.

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

It is not a de Polignac number, because 3890515 - 2³ = 3890507 is a prime.

It is a super-2 number, since 2×3890515² = 30272213930450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1822 + ... + 3331.

It is an arithmetic number, because the mean of its divisors is an integer number (587556).

Almost surely, 2^3890515 is an apocalyptic number.

3890515 is a deficient number, since it is larger than the sum of its proper divisors (809933).

3890515 is a wasteful number, since it uses less digits than its factorization.

3890515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5309.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 3890515 is about 1972.4388456933. The cubic root of 3890515 is about 157.2783815122.

The spelling of 3890515 in words is "three million, eight hundred ninety thousand, five hundred fifteen".