3649051 has 16 divisors (see below), whose sum is σ = 4364224. Its totient is φ = 2985984.

The previous prime is 3649049. The next prime is 3649057. The reversal of 3649051 is 1509463.

3649051 is a nontrivial binomial coefficient, being equal to C(2702, 2).

It is a 12-Lehmer number, since φ(3649051) divides (3649051-1)¹².

It is a cyclic number.

It is not a de Polignac number, because 3649051 - 2¹ = 3649049 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3649057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18811 + ... + 19003.

It is an arithmetic number, because the mean of its divisors is an integer number (272764).

Almost surely, 2^3649051 is an apocalyptic number.

3649051 is the 2701-st triangular number and also the 1351-st hexagonal number.

3649051 is the 901-st centered nonagonal number.

3649051 is a deficient number, since it is larger than the sum of its proper divisors (715173).

3649051 is a wasteful number, since it uses less digits than its factorization.

3649051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310.

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

The square root of 3649051 is about 1910.2489366572. The cubic root of 3649051 is about 153.9548273648.

The spelling of 3649051 in words is "three million, six hundred forty-nine thousand, fifty-one".