756609473 has 2 divisors, whose sum is σ = 756609474. Its totient is φ = 756609472.

The previous prime is 756609461. The next prime is 756609517. The reversal of 756609473 is 374906657.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 679749184 + 76860289 = 26072^2 + 8767^2 .

It is a cyclic number.

It is not a de Polignac number, because 756609473 - 2¹⁶ = 756543937 is a prime.

It is not a weakly prime, because it can be changed into another prime (756609433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 378304736 + 378304737.

It is an arithmetic number, because the mean of its divisors is an integer number (378304737).

Almost surely, 2^756609473 is an apocalyptic number.

It is an amenable number.

756609473 is a deficient number, since it is larger than the sum of its proper divisors (1).

756609473 is an equidigital number, since it uses as much as digits as its factorization.

756609473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 952560, while the sum is 47.

The square root of 756609473 is about 27506.5350962276. The cubic root of 756609473 is about 911.2214299059.

The spelling of 756609473 in words is "seven hundred fifty-six million, six hundred nine thousand, four hundred seventy-three".