1612721714 has 8 divisors (see below), whose sum is σ = 2420917788. Its totient is φ = 805749120.

The previous prime is 1612721713. The next prime is 1612721731. The reversal of 1612721714 is 4171272161.

It can be written as a sum of positive squares in 2 ways, for example, as 1602641089 + 10080625 = 40033^2 + 3175^2 .

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 (1612721713) 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, 302567 + ... + 307850.

Almost surely, 2^1612721714 is an apocalyptic number.

1612721714 is a deficient number, since it is larger than the sum of its proper divisors (808196074).

1612721714 is a wasteful number, since it uses less digits than its factorization.

1612721714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611740.

The product of its digits is 4704, while the sum is 32.

The square root of 1612721714 is about 40158.7065777771. The cubic root of 1612721714 is about 1172.6987920553.

Adding to 1612721714 its reverse (4171272161), we get a palindrome (5783993875).

The spelling of 1612721714 in words is "one billion, six hundred twelve million, seven hundred twenty-one thousand, seven hundred fourteen".