80649464 has 64 divisors (see below), whose sum is σ = 182347200. Its totient is φ = 32707584.

The previous prime is 80649463. The next prime is 80649577. The reversal of 80649464 is 46494608.

It is a super-3 number, since 3×80649464³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80649461) 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, 85604 + ... + 86540.

It is an arithmetic number, because the mean of its divisors is an integer number (2849175).

Almost surely, 2^80649464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80649464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91173600).

80649464 is an abundant number, since it is smaller than the sum of its proper divisors (101697736).

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

80649464 is a wasteful number, since it uses less digits than its factorization.

80649464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032 (or 1028 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 41.

The square root of 80649464 is about 8980.5046628795. The cubic root of 80649464 is about 432.0498199288.

It can be divided in two parts, 8064 and 9464, that multiplied together give a square (76317696 = 8736²).

The spelling of 80649464 in words is "eighty million, six hundred forty-nine thousand, four hundred sixty-four".