23601921 has 8 divisors (see below), whose sum is σ = 35964864. Its totient is φ = 13486800.

The previous prime is 23601863. The next prime is 23601923. The reversal of 23601921 is 12910632.

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

It is not a de Polignac number, because 23601921 - 2⁷ = 23601793 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23601891 and 23601900.

It is not an unprimeable number, because it can be changed into a prime (23601923) 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, 561930 + ... + 561971.

It is an arithmetic number, because the mean of its divisors is an integer number (4495608).

Almost surely, 2^23601921 is an apocalyptic number.

23601921 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

23601921 is a deficient number, since it is larger than the sum of its proper divisors (12362943).

23601921 is a wasteful number, since it uses less digits than its factorization.

23601921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123911.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 23601921 is about 4858.1808323693. The cubic root of 23601921 is about 286.8462109129.

The spelling of 23601921 in words is "twenty-three million, six hundred one thousand, nine hundred twenty-one".