648794274 has 8 divisors (see below), whose sum is σ = 1297588560. Its totient is φ = 216264756.

The previous prime is 648794261. The next prime is 648794303. The reversal of 648794274 is 472497846.

It is a happy number.

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

648794274 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, 54066184 + ... + 54066195.

It is an arithmetic number, because the mean of its divisors is an integer number (162198570).

Almost surely, 2^648794274 is an apocalyptic number.

648794274 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.

648794274 is a wasteful number, since it uses less digits than its factorization.

648794274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108132384.

The product of its digits is 2709504, while the sum is 51.

The square root of 648794274 is about 25471.4403597441. The cubic root of 648794274 is about 865.7031599658.

The spelling of 648794274 in words is "six hundred forty-eight million, seven hundred ninety-four thousand, two hundred seventy-four".