1621848 has 16 divisors (see below), whose sum is σ = 4054680. Its totient is φ = 540608.

The previous prime is 1621843. The next prime is 1621849. The reversal of 1621848 is 8481261.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1621843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33765 + ... + 33812.

2^1621848 is an apocalyptic number.

It is an amenable number.

1621848 is an abundant number, since it is smaller than the sum of its proper divisors (2432832).

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

1621848 is a wasteful number, since it uses less digits than its factorization.

1621848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67586 (or 67582 counting only the distinct ones).

The product of its digits is 3072, while the sum is 30.

The square root of 1621848 is about 1273.5179621819. The cubic root of 1621848 is about 117.4906707547.

The spelling of 1621848 in words is "one million, six hundred twenty-one thousand, eight hundred forty-eight".