4372521 has 8 divisors (see below), whose sum is σ = 5844384. Its totient is φ = 2907840.

The previous prime is 4372517. The next prime is 4372531. The reversal of 4372521 is 1252734.

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

It is not a de Polignac number, because 4372521 - 2² = 4372517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4372491 and 4372500.

It is not an unprimeable number, because it can be changed into a prime (4372531) 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, 160 + ... + 2961.

It is an arithmetic number, because the mean of its divisors is an integer number (730548).

Almost surely, 2^4372521 is an apocalyptic number.

It is an amenable number.

4372521 is a deficient number, since it is larger than the sum of its proper divisors (1471863).

4372521 is a wasteful number, since it uses less digits than its factorization.

4372521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3591.

The product of its digits is 1680, while the sum is 24.

The square root of 4372521 is about 2091.0573880217. The cubic root of 4372521 is about 163.5224183458.

The spelling of 4372521 in words is "four million, three hundred seventy-two thousand, five hundred twenty-one".