761057409 has 16 divisors (see below), whose sum is σ = 1197117440. Its totient is φ = 420860880.

The previous prime is 761057389. The next prime is 761057413. The reversal of 761057409 is 904750167.

It is not a de Polignac number, because 761057409 - 2⁸ = 761057153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (761057459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 583879 + ... + 585180.

It is an arithmetic number, because the mean of its divisors is an integer number (74819840).

Almost surely, 2^761057409 is an apocalyptic number.

It is an amenable number.

761057409 is a deficient number, since it is larger than the sum of its proper divisors (436060031).

761057409 is a wasteful number, since it uses less digits than its factorization.

761057409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169100.

The product of its (nonzero) digits is 52920, while the sum is 39.

The square root of 761057409 is about 27587.2689659560. The cubic root of 761057409 is about 913.0035637782.

The spelling of 761057409 in words is "seven hundred sixty-one million, fifty-seven thousand, four hundred nine".