1621962 has 24 divisors (see below), whose sum is σ = 3538080. Its totient is φ = 537000.

The previous prime is 1621933. The next prime is 1621979. The reversal of 1621962 is 2691261.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4339 + ... + 4697.

It is an arithmetic number, because the mean of its divisors is an integer number (147420).

2^1621962 is an apocalyptic number.

1621962 is an abundant number, since it is smaller than the sum of its proper divisors (1916118).

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

1621962 is a wasteful number, since it uses less digits than its factorization.

1621962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618 (or 615 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 1621962 is about 1273.5627193036. The cubic root of 1621962 is about 117.4934235040.

The spelling of 1621962 in words is "one million, six hundred twenty-one thousand, nine hundred sixty-two".