127720650 has 24 divisors (see below), whose sum is σ = 316747584. Its totient is φ = 34058800.

The previous prime is 127720639. The next prime is 127720687. The reversal of 127720650 is 56027721.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 425586 + ... + 425885.

It is an arithmetic number, because the mean of its divisors is an integer number (13197816).

Almost surely, 2^127720650 is an apocalyptic number.

127720650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

127720650 is an abundant number, since it is smaller than the sum of its proper divisors (189026934).

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

127720650 is a wasteful number, since it uses less digits than its factorization.

127720650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851486 (or 851481 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 127720650 is about 11301.3561133167. The cubic root of 127720650 is about 503.6015290234.

The spelling of 127720650 in words is "one hundred twenty-seven million, seven hundred twenty thousand, six hundred fifty".