71654970 has 16 divisors (see below), whose sum is σ = 171972000. Its totient is φ = 19107984.

The previous prime is 71654951. The next prime is 71654971. The reversal of 71654970 is 7945617.

It is not an unprimeable number, because it can be changed into a prime (71654971) 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, 1194220 + ... + 1194279.

It is an arithmetic number, because the mean of its divisors is an integer number (10748250).

Almost surely, 2^71654970 is an apocalyptic number.

71654970 is an abundant number, since it is smaller than the sum of its proper divisors (100317030).

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

71654970 is a wasteful number, since it uses less digits than its factorization.

71654970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2388509.

The product of its (nonzero) digits is 52920, while the sum is 39.

The square root of 71654970 is about 8464.9258709099. The cubic root of 71654970 is about 415.3511712812.

The spelling of 71654970 in words is "seventy-one million, six hundred fifty-four thousand, nine hundred seventy".