71377960 has 32 divisors (see below), whose sum is σ = 164021760. Its totient is φ = 27942976.

The previous prime is 71377931. The next prime is 71377963. The reversal of 71377960 is 6977317.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (71377963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17104 + ... + 20863.

It is an arithmetic number, because the mean of its divisors is an integer number (5125680).

Almost surely, 2^71377960 is an apocalyptic number.

It is an amenable number.

71377960 is an abundant number, since it is smaller than the sum of its proper divisors (92643800).

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

71377960 is a wasteful number, since it uses less digits than its factorization.

71377960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38025 (or 38021 counting only the distinct ones).

The product of its (nonzero) digits is 55566, while the sum is 40.

The square root of 71377960 is about 8448.5478042087. The cubic root of 71377960 is about 414.8152465470.

The spelling of 71377960 in words is "seventy-one million, three hundred seventy-seven thousand, nine hundred sixty".