64722441 has 8 divisors (see below), whose sum is σ = 98624704. Its totient is φ = 36984240.

The previous prime is 64722433. The next prime is 64722443. The reversal of 64722441 is 14422746.

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

It is not a de Polignac number, because 64722441 - 2³ = 64722433 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 64722399 and 64722408.

It is not an unprimeable number, because it can be changed into a prime (64722443) 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, 1540990 + ... + 1541031.

It is an arithmetic number, because the mean of its divisors is an integer number (12328088).

Almost surely, 2^64722441 is an apocalyptic number.

It is an amenable number.

64722441 is a deficient number, since it is larger than the sum of its proper divisors (33902263).

64722441 is a wasteful number, since it uses less digits than its factorization.

64722441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3082031.

The product of its digits is 10752, while the sum is 30.

The square root of 64722441 is about 8045.0258545265. The cubic root of 64722441 is about 401.4994574613.

The spelling of 64722441 in words is "sixty-four million, seven hundred twenty-two thousand, four hundred forty-one".