648177467 has 16 divisors (see below), whose sum is σ = 773852160. Its totient is φ = 530826912.

The previous prime is 648177451. The next prime is 648177469. The reversal of 648177467 is 764771846.

It is not a de Polignac number, because 648177467 - 2⁴ = 648177451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (648177469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193634 + ... + 196952.

It is an arithmetic number, because the mean of its divisors is an integer number (48365760).

Almost surely, 2^648177467 is an apocalyptic number.

648177467 is a deficient number, since it is larger than the sum of its proper divisors (125674693).

648177467 is a wasteful number, since it uses less digits than its factorization.

648177467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4562.

The product of its digits is 1580544, while the sum is 50.

The square root of 648177467 is about 25459.3296651738. The cubic root of 648177467 is about 865.4287324136.

The spelling of 648177467 in words is "six hundred forty-eight million, one hundred seventy-seven thousand, four hundred sixty-seven".