3702861 has 8 divisors (see below), whose sum is σ = 5485760. Its totient is φ = 2468556.

The previous prime is 3702841. The next prime is 3702869. The reversal of 3702861 is 1682073.

It is not a de Polignac number, because 3702861 - 2¹⁴ = 3686477 is a prime.

It is a super-2 number, since 2×3702861² = 27422359170642, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 137143 = 3702861 / (3 + 7 + 0 + 2 + 8 + 6 + 1).

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3702869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68545 + ... + 68598.

It is an arithmetic number, because the mean of its divisors is an integer number (685720).

Almost surely, 2^3702861 is an apocalyptic number.

It is an amenable number.

3702861 is a deficient number, since it is larger than the sum of its proper divisors (1782899).

3702861 is a wasteful number, since it uses less digits than its factorization.

3702861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137152 (or 137146 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 3702861 is about 1924.2819439989. The cubic root of 3702861 is about 154.7078924447.

The spelling of 3702861 in words is "three million, seven hundred two thousand, eight hundred sixty-one".