101662997 has 4 divisors (see below), whose sum is σ = 102195456. Its totient is φ = 101130540.

The previous prime is 101662973. The next prime is 101662999. The reversal of 101662997 is 799266101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 101662997 - 2⁶ = 101662933 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 (101662999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 265943 + ... + 266324.

It is an arithmetic number, because the mean of its divisors is an integer number (25548864).

Almost surely, 2^101662997 is an apocalyptic number.

It is an amenable number.

101662997 is a deficient number, since it is larger than the sum of its proper divisors (532459).

101662997 is an equidigital number, since it uses as much as digits as its factorization.

101662997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532458.

The product of its (nonzero) digits is 40824, while the sum is 41.

The square root of 101662997 is about 10082.8070000372. The cubic root of 101662997 is about 466.7177335839.

The spelling of 101662997 in words is "one hundred one million, six hundred sixty-two thousand, nine hundred ninety-seven".