545973906 has 8 divisors (see below), whose sum is σ = 1091947824. Its totient is φ = 181991300.

The previous prime is 545973899. The next prime is 545973913. The reversal of 545973906 is 609379545.

It is an interprime number because it is at equal distance from previous prime (545973899) and next prime (545973913).

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

545973906 is an admirable 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, 45497820 + ... + 45497831.

It is an arithmetic number, because the mean of its divisors is an integer number (136493478).

Almost surely, 2^545973906 is an apocalyptic number.

545973906 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.

545973906 is a wasteful number, since it uses less digits than its factorization.

545973906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90995656.

The product of its (nonzero) digits is 1020600, while the sum is 48.

The square root of 545973906 is about 23366.0845243699. The cubic root of 545973906 is about 817.3171819494.

The spelling of 545973906 in words is "five hundred forty-five million, nine hundred seventy-three thousand, nine hundred six".