501005397 has 8 divisors (see below), whose sum is σ = 669124800. Its totient is φ = 333444800.

The previous prime is 501005377. The next prime is 501005413. The reversal of 501005397 is 793500105.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 501005397 - 2⁶ = 501005333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501005377) 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, 137604 + ... + 141197.

It is an arithmetic number, because the mean of its divisors is an integer number (83640600).

Almost surely, 2^501005397 is an apocalyptic number.

It is an amenable number.

501005397 is a deficient number, since it is larger than the sum of its proper divisors (168119403).

501005397 is a wasteful number, since it uses less digits than its factorization.

501005397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279403.

The product of its (nonzero) digits is 4725, while the sum is 30.

The square root of 501005397 is about 22383.1498453636. The cubic root of 501005397 is about 794.2321592267.

The spelling of 501005397 in words is "five hundred one million, five thousand, three hundred ninety-seven".