3870545 has 8 divisors (see below), whose sum is σ = 5308224. Its totient is φ = 2654064.

The previous prime is 3870527. The next prime is 3870551. The reversal of 3870545 is 5450783.

It is a happy number.

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

It is not a de Polignac number, because 3870545 - 2²⁰ = 2821969 is a prime.

It is a super-2 number, since 2×3870545² = 29962237194050, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian 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, 55259 + ... + 55328.

It is an arithmetic number, because the mean of its divisors is an integer number (663528).

Almost surely, 2^3870545 is an apocalyptic number.

3870545 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3870545 is a deficient number, since it is larger than the sum of its proper divisors (1437679).

3870545 is a wasteful number, since it uses less digits than its factorization.

3870545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110599.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 3870545 is about 1967.3700719488. The cubic root of 3870545 is about 157.0088166307.

The spelling of 3870545 in words is "three million, eight hundred seventy thousand, five hundred forty-five".