1997614081 has 8 divisors (see below), whose sum is σ = 2014905024. Its totient is φ = 1980395760.

The previous prime is 1997614051. The next prime is 1997614097. The reversal of 1997614081 is 1804167991.

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 1997614081 - 2¹³ = 1997605889 is a prime.

It is a super-2 number, since 2×1997614081² = 7980924033218949122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1997614051) 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, 37836 + ... + 73666.

It is an arithmetic number, because the mean of its divisors is an integer number (251863128).

Almost surely, 2^1997614081 is an apocalyptic number.

It is an amenable number.

1997614081 is a deficient number, since it is larger than the sum of its proper divisors (17290943).

1997614081 is a wasteful number, since it uses less digits than its factorization.

1997614081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36311.

The product of its (nonzero) digits is 108864, while the sum is 46.

The square root of 1997614081 is about 44694.6762042192. The cubic root of 1997614081 is about 1259.4198389386.

The spelling of 1997614081 in words is "one billion, nine hundred ninety-seven million, six hundred fourteen thousand, eighty-one".