648577914 has 32 divisors (see below), whose sum is σ = 1396751040. Its totient is φ = 200024832.

The previous prime is 648577903. The next prime is 648577927. The reversal of 648577914 is 419775846.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47869 + ... + 59904.

It is an arithmetic number, because the mean of its divisors is an integer number (43648470).

Almost surely, 2^648577914 is an apocalyptic number.

648577914 is an abundant number, since it is smaller than the sum of its proper divisors (748173126).

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

648577914 is a wasteful number, since it uses less digits than its factorization.

648577914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107854.

The product of its digits is 1693440, while the sum is 51.

The square root of 648577914 is about 25467.1928959593. The cubic root of 648577914 is about 865.6069176654.

It can be divided in two parts, 64857 and 7914, that added together give a triangular number (72771 = T₃₈₁).

The spelling of 648577914 in words is "six hundred forty-eight million, five hundred seventy-seven thousand, nine hundred fourteen".