501213707 has 4 divisors (see below), whose sum is σ = 501570840. Its totient is φ = 500856576.

The previous prime is 501213623. The next prime is 501213733. The reversal of 501213707 is 707312105.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 501213707 - 2¹⁶ = 501148171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (501213767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176453 + ... + 179270.

It is an arithmetic number, because the mean of its divisors is an integer number (125392710).

Almost surely, 2^501213707 is an apocalyptic number.

501213707 is a deficient number, since it is larger than the sum of its proper divisors (357133).

501213707 is a wasteful number, since it uses less digits than its factorization.

501213707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357132.

The product of its (nonzero) digits is 1470, while the sum is 26.

The square root of 501213707 is about 22387.8026389371. The cubic root of 501213707 is about 794.3422203008.

The spelling of 501213707 in words is "five hundred one million, two hundred thirteen thousand, seven hundred seven".