641472337 has 8 divisors (see below), whose sum is σ = 708647040. Its totient is φ = 575774160.

The previous prime is 641472331. The next prime is 641472341. The reversal of 641472337 is 733274146.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-641472337 is a prime.

It is a super-2 number, since 2×641472337² = 822973518272483138, 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 = 641472296 and 641472305.

It is not an unprimeable number, because it can be changed into a prime (641472331) 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, 368218 + ... + 369955.

It is an arithmetic number, because the mean of its divisors is an integer number (88580880).

Almost surely, 2^641472337 is an apocalyptic number.

It is an amenable number.

641472337 is a deficient number, since it is larger than the sum of its proper divisors (67174703).

641472337 is a wasteful number, since it uses less digits than its factorization.

641472337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738263.

The product of its digits is 84672, while the sum is 37.

The square root of 641472337 is about 25327.3041794819. The cubic root of 641472337 is about 862.4342144602.

The spelling of 641472337 in words is "six hundred forty-one million, four hundred seventy-two thousand, three hundred thirty-seven".