2649951 has 6 divisors (see below), whose sum is σ = 3827720. Its totient is φ = 1766628.

The previous prime is 2649931. The next prime is 2649967. The reversal of 2649951 is 1599462.

2649951 is a `hidden beast` number, since 2 + 649 + 9 + 5 + 1 = 666.

It is not a de Polignac number, because 2649951 - 2⁶ = 2649887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2649931) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 147211 + ... + 147228.

2^2649951 is an apocalyptic number.

2649951 is a deficient number, since it is larger than the sum of its proper divisors (1177769).

2649951 is a wasteful number, since it uses less digits than its factorization.

2649951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294445 (or 294442 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 2649951 is about 1627.8670093100. The cubic root of 2649951 is about 138.3818974341.

It can be divided in two parts, 2649 and 951, that added together give a square (3600 = 60²).

The spelling of 2649951 in words is "two million, six hundred forty-nine thousand, nine hundred fifty-one".