71679550 has 12 divisors (see below), whose sum is σ = 133324056. Its totient is φ = 28671800.

The previous prime is 71679539. The next prime is 71679557. The reversal of 71679550 is 5597617.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71679557) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 716746 + ... + 716845.

It is an arithmetic number, because the mean of its divisors is an integer number (11110338).

Almost surely, 2^71679550 is an apocalyptic number.

71679550 is a deficient number, since it is larger than the sum of its proper divisors (61644506).

71679550 is a wasteful number, since it uses less digits than its factorization.

71679550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1433603 (or 1433598 counting only the distinct ones).

The product of its (nonzero) digits is 66150, while the sum is 40.

The square root of 71679550 is about 8466.3776197380. The cubic root of 71679550 is about 415.3986588671.

The spelling of 71679550 in words is "seventy-one million, six hundred seventy-nine thousand, five hundred fifty".