71963552 has 12 divisors (see below), whose sum is σ = 141678306. Its totient is φ = 35981760.

The previous prime is 71963543. The next prime is 71963579. The reversal of 71963552 is 25536917.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 70627216 + 1336336 = 8404^2 + 1156^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1124399 + ... + 1124462.

Almost surely, 2^71963552 is an apocalyptic number.

It is an amenable number.

71963552 is a deficient number, since it is larger than the sum of its proper divisors (69714754).

71963552 is a wasteful number, since it uses less digits than its factorization.

71963552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2248871 (or 2248863 counting only the distinct ones).

The product of its digits is 56700, while the sum is 38.

The square root of 71963552 is about 8483.1333833673. The cubic root of 71963552 is about 415.9465537846.

The spelling of 71963552 in words is "seventy-one million, nine hundred sixty-three thousand, five hundred fifty-two".