66892441 has 32 divisors (see below), whose sum is σ = 88086528. Its totient is φ = 49251840.

The previous prime is 66892409. The next prime is 66892459. The reversal of 66892441 is 14429866.

It is not a de Polignac number, because 66892441 - 2⁵ = 66892409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66892394 and 66892403.

It is not an unprimeable number, because it can be changed into a prime (66892471) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 189321 + ... + 189673.

It is an arithmetic number, because the mean of its divisors is an integer number (2752704).

Almost surely, 2^66892441 is an apocalyptic number.

It is an amenable number.

66892441 is a deficient number, since it is larger than the sum of its proper divisors (21194087).

66892441 is a wasteful number, since it uses less digits than its factorization.

66892441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501.

The product of its digits is 82944, while the sum is 40.

The square root of 66892441 is about 8178.7799212352. The cubic root of 66892441 is about 405.9373523177.

The spelling of 66892441 in words is "sixty-six million, eight hundred ninety-two thousand, four hundred forty-one".