3872715 has 48 divisors (see below), whose sum is σ = 7879680. Its totient is φ = 1606080.

The previous prime is 3872681. The next prime is 3872731. The reversal of 3872715 is 5172783.

It is not a de Polignac number, because 3872715 - 2⁷ = 3872587 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

3872715 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7846 + ... + 8324.

It is an arithmetic number, because the mean of its divisors is an integer number (164160).

Almost surely, 2^3872715 is an apocalyptic number.

3872715 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3872715 is an abundant number, since it is smaller than the sum of its proper divisors (4006965).

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

3872715 is a wasteful number, since it uses less digits than its factorization.

3872715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512 (or 505 counting only the distinct ones).

The product of its digits is 11760, while the sum is 33.

The square root of 3872715 is about 1967.9214923365. The cubic root of 3872715 is about 157.0381531952.

The spelling of 3872715 in words is "three million, eight hundred seventy-two thousand, seven hundred fifteen".