71119964 has 24 divisors (see below), whose sum is σ = 132975360. Its totient is φ = 33183216.

The previous prime is 71119913. The next prime is 71119967. The reversal of 71119964 is 46991117.

71119964 = 492² + 493² + ... + 692².

It is a super-2 number, since 2×71119964² = 10116098558722592, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71119967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1892 + ... + 12075.

It is an arithmetic number, because the mean of its divisors is an integer number (5540640).

Almost surely, 2^71119964 is an apocalyptic number.

It is an amenable number.

71119964 is a deficient number, since it is larger than the sum of its proper divisors (61855396).

71119964 is a wasteful number, since it uses less digits than its factorization.

71119964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14057 (or 14055 counting only the distinct ones).

The product of its digits is 13608, while the sum is 38.

The square root of 71119964 is about 8433.2653225189. The cubic root of 71119964 is about 414.3148592372.

The spelling of 71119964 in words is "seventy-one million, one hundred nineteen thousand, nine hundred sixty-four".