66892345 has 8 divisors (see below), whose sum is σ = 86445576. Its totient is φ = 49397376.

The previous prime is 66892313. The next prime is 66892373. The reversal of 66892345 is 54329866.

It can be written as a sum of positive squares in 4 ways, for example, as 8690704 + 58201641 = 2948^2 + 7629^2 .

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 66892345 - 2⁵ = 66892313 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 514492 + ... + 514621.

It is an arithmetic number, because the mean of its divisors is an integer number (10805697).

Almost surely, 2^66892345 is an apocalyptic number.

66892345 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

66892345 is a deficient number, since it is larger than the sum of its proper divisors (19553231).

66892345 is a wasteful number, since it uses less digits than its factorization.

66892345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029131.

The product of its digits is 311040, while the sum is 43.

The square root of 66892345 is about 8178.7740523871. The cubic root of 66892345 is about 405.9371581253.

The spelling of 66892345 in words is "sixty-six million, eight hundred ninety-two thousand, three hundred forty-five".