1621714 has 8 divisors (see below), whose sum is σ = 2492028. Its totient is φ = 791040.

The previous prime is 1621699. The next prime is 1621717. The reversal of 1621714 is 4171261.

It can be written as a sum of positive squares in 2 ways, for example, as 1481089 + 140625 = 1217^2 + 375^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1621717) 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, 9807 + ... + 9970.

2^1621714 is an apocalyptic number.

1621714 is a deficient number, since it is larger than the sum of its proper divisors (870314).

1621714 is a wasteful number, since it uses less digits than its factorization.

1621714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19820.

The product of its digits is 336, while the sum is 22.

The square root of 1621714 is about 1273.4653509224. The cubic root of 1621714 is about 117.4874349020.

Adding to 1621714 its reverse (4171261), we get a palindrome (5792975).

The spelling of 1621714 in words is "one million, six hundred twenty-one thousand, seven hundred fourteen".