1708141421 has 18 divisors (see below), whose sum is σ = 1998819342. Its totient is φ = 1455476400.

The previous prime is 1708141387. The next prime is 1708141423. The reversal of 1708141421 is 1241418071.

It can be written as a sum of positive squares in only one way, i.e., 1647223396 + 60918025 = 40586^2 + 7805^2 .

It is not a de Polignac number, because 1708141421 - 2²⁶ = 1641032557 is a prime.

It is a super-2 number, since 2×1708141421² = 5835494228271798482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1708141423) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2436371 + ... + 2437071.

It is an arithmetic number, because the mean of its divisors is an integer number (111045519).

Almost surely, 2^1708141421 is an apocalyptic number.

It is an amenable number.

1708141421 is a deficient number, since it is larger than the sum of its proper divisors (290677921).

1708141421 is an frugal number, since it uses more digits than its factorization.

1708141421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1161 (or 931 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 29.

The square root of 1708141421 is about 41329.6675645958. The cubic root of 1708141421 is about 1195.3853838917.

Adding to 1708141421 its reverse (1241418071), we get a palindrome (2949559492).

The spelling of 1708141421 in words is "one billion, seven hundred eight million, one hundred forty-one thousand, four hundred twenty-one".