648897038 has 8 divisors (see below), whose sum is σ = 1030601232. Its totient is φ = 305363296.

The previous prime is 648897019. The next prime is 648897061. The reversal of 648897038 is 830798846.

It is a happy number.

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

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, 9542570 + ... + 9542637.

It is an arithmetic number, because the mean of its divisors is an integer number (128825154).

Almost surely, 2^648897038 is an apocalyptic number.

648897038 is a deficient number, since it is larger than the sum of its proper divisors (381704194).

648897038 is a wasteful number, since it uses less digits than its factorization.

648897038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19085226.

The product of its (nonzero) digits is 2322432, while the sum is 53.

The square root of 648897038 is about 25473.4575195437. The cubic root of 648897038 is about 865.7488644500.

The spelling of 648897038 in words is "six hundred forty-eight million, eight hundred ninety-seven thousand, thirty-eight".