101690623 has 8 divisors (see below), whose sum is σ = 103765536. Its totient is φ = 99621600.

The previous prime is 101690597. The next prime is 101690663. The reversal of 101690623 is 326096101.

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 101690623 - 2¹³ = 101682431 is a prime.

It is a super-2 number, since 2×101690623² = 20681965612256258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101690591 and 101690600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101690663) 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, 53713 + ... + 55573.

It is an arithmetic number, because the mean of its divisors is an integer number (12970692).

Almost surely, 2^101690623 is an apocalyptic number.

101690623 is a deficient number, since it is larger than the sum of its proper divisors (2074913).

101690623 is a wasteful number, since it uses less digits than its factorization.

101690623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2945.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 101690623 is about 10084.1768627886. The cubic root of 101690623 is about 466.7600051962.

The spelling of 101690623 in words is "one hundred one million, six hundred ninety thousand, six hundred twenty-three".