71969808 has 40 divisors (see below), whose sum is σ = 187739968. Its totient is φ = 23755392.

The previous prime is 71969803. The next prime is 71969809. The reversal of 71969808 is 80896917.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71969803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2335 + ... + 12222.

Almost surely, 2^71969808 is an apocalyptic number.

It is an amenable number.

71969808 is an abundant number, since it is smaller than the sum of its proper divisors (115770160).

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

71969808 is a wasteful number, since it uses less digits than its factorization.

71969808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14671 (or 14665 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 48.

The square root of 71969808 is about 8483.5021070310. The cubic root of 71969808 is about 415.9586065815.

The spelling of 71969808 in words is "seventy-one million, nine hundred sixty-nine thousand, eight hundred eight".