64248445 has 8 divisors (see below), whose sum is σ = 77464800. Its totient is φ = 51154320.

The previous prime is 64248439. The next prime is 64248451. The reversal of 64248445 is 54484246.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (64248439) and next prime (64248451).

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

It is not a de Polignac number, because 64248445 - 2²¹ = 62151293 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29395 + ... + 31504.

It is an arithmetic number, because the mean of its divisors is an integer number (9683100).

Almost surely, 2^64248445 is an apocalyptic number.

It is an amenable number.

64248445 is a deficient number, since it is larger than the sum of its proper divisors (13216355).

64248445 is a wasteful number, since it uses less digits than its factorization.

64248445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61115.

The product of its digits is 122880, while the sum is 37.

The square root of 64248445 is about 8015.5127721188. The cubic root of 64248445 is about 400.5169254325.

The spelling of 64248445 in words is "sixty-four million, two hundred forty-eight thousand, four hundred forty-five".