2621956 has 6 divisors (see below), whose sum is σ = 4588430. Its totient is φ = 1310976.

The previous prime is 2621951. The next prime is 2621987. The reversal of 2621956 is 6591262.

It can be written as a sum of positive squares in only one way, i.e., 2433600 + 188356 = 1560^2 + 434^2 .

It is not an unprimeable number, because it can be changed into a prime (2621951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327741 + ... + 327748.

2^2621956 is an apocalyptic number.

It is an amenable number.

2621956 is a deficient number, since it is larger than the sum of its proper divisors (1966474).

2621956 is a wasteful number, since it uses less digits than its factorization.

2621956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655493 (or 655491 counting only the distinct ones).

The product of its digits is 6480, while the sum is 31.

The square root of 2621956 is about 1619.2455033132. The cubic root of 2621956 is about 137.8928665111.

The spelling of 2621956 in words is "two million, six hundred twenty-one thousand, nine hundred fifty-six".