127377690 has 64 divisors (see below), whose sum is σ = 337322880. Its totient is φ = 30525440.

The previous prime is 127377683. The next prime is 127377707. The reversal of 127377690 is 96773721.

It is a super-2 number, since 2×127377690² = 32450151819472200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27202 + ... + 31538.

It is an arithmetic number, because the mean of its divisors is an integer number (5270670).

Almost surely, 2^127377690 is an apocalyptic number.

127377690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 127377690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168661440).

127377690 is an abundant number, since it is smaller than the sum of its proper divisors (209945190).

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

127377690 is a wasteful number, since it uses less digits than its factorization.

127377690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4447.

The product of its (nonzero) digits is 111132, while the sum is 42.

The square root of 127377690 is about 11286.1725133014. The cubic root of 127377690 is about 503.1503620820.

The spelling of 127377690 in words is "one hundred twenty-seven million, three hundred seventy-seven thousand, six hundred ninety".