66873450 has 48 divisors (see below), whose sum is σ = 189541440. Its totient is φ = 15285120.

The previous prime is 66873431. The next prime is 66873451. The reversal of 66873450 is 5437866.

It is a junction number, because it is equal to n+sod(n) for n = 66873399 and 66873408.

It is not an unprimeable number, because it can be changed into a prime (66873451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30795 + ... + 32894.

It is an arithmetic number, because the mean of its divisors is an integer number (3948780).

Almost surely, 2^66873450 is an apocalyptic number.

66873450 is an abundant number, since it is smaller than the sum of its proper divisors (122667990).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66873450 is a wasteful number, since it uses less digits than its factorization.

66873450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63711 (or 63706 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 66873450 is about 8177.6188465836. The cubic root of 66873450 is about 405.8989329995.

The spelling of 66873450 in words is "sixty-six million, eight hundred seventy-three thousand, four hundred fifty".