501078973 has 2 divisors, whose sum is σ = 501078974. Its totient is φ = 501078972.

The previous prime is 501078971. The next prime is 501078979. The reversal of 501078973 is 379870105.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 430064644 + 71014329 = 20738^2 + 8427^2 .

It is a cyclic number.

It is not a de Polignac number, because 501078973 - 2¹ = 501078971 is a prime.

Together with 501078971, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (501078971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250539486 + 250539487.

It is an arithmetic number, because the mean of its divisors is an integer number (250539487).

Almost surely, 2^501078973 is an apocalyptic number.

It is an amenable number.

501078973 is a deficient number, since it is larger than the sum of its proper divisors (1).

501078973 is an equidigital number, since it uses as much as digits as its factorization.

501078973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52920, while the sum is 40.

The square root of 501078973 is about 22384.7933428031. The cubic root of 501078973 is about 794.2710367619.

The spelling of 501078973 in words is "five hundred one million, seventy-eight thousand, nine hundred seventy-three".