66790734 has 8 divisors (see below), whose sum is σ = 133581480. Its totient is φ = 22263576.

The previous prime is 66790727. The next prime is 66790747. The reversal of 66790734 is 43709766.

It is a sphenic number, since it is the product of 3 distinct primes.

66790734 is an admirable number.

It is a super-3 number, since 3×66790734³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5565889 + ... + 5565900.

It is an arithmetic number, because the mean of its divisors is an integer number (16697685).

Almost surely, 2^66790734 is an apocalyptic number.

66790734 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

66790734 is a wasteful number, since it uses less digits than its factorization.

66790734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11131794.

The product of its (nonzero) digits is 190512, while the sum is 42.

The square root of 66790734 is about 8172.5598192977. The cubic root of 66790734 is about 405.7315113576.

The spelling of 66790734 in words is "sixty-six million, seven hundred ninety thousand, seven hundred thirty-four".