1712667421 has 8 divisors (see below), whose sum is σ = 1718006400. Its totient is φ = 1707337200.

The previous prime is 1712667409. The next prime is 1712667449. The reversal of 1712667421 is 1247662171.

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

It is a cyclic number.

It is not a de Polignac number, because 1712667421 - 2¹³ = 1712659229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1712667461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 670096 + ... + 672646.

It is an arithmetic number, because the mean of its divisors is an integer number (214750800).

Almost surely, 2^1712667421 is an apocalyptic number.

It is an amenable number.

1712667421 is a deficient number, since it is larger than the sum of its proper divisors (5338979).

1712667421 is a wasteful number, since it uses less digits than its factorization.

1712667421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4379.

The product of its digits is 28224, while the sum is 37.

The square root of 1712667421 is about 41384.3861981787. The cubic root of 1712667421 is about 1196.4402424451.

The spelling of 1712667421 in words is "one billion, seven hundred twelve million, six hundred sixty-seven thousand, four hundred twenty-one".