71976490 has 16 divisors (see below), whose sum is σ = 129680352. Its totient is φ = 28763344.

The previous prime is 71976473. The next prime is 71976517. The reversal of 71976490 is 9467917.

It is a happy number.

It is a super-2 number, since 2×71976490² = 10361230225440200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10317 + ... + 15823.

It is an arithmetic number, because the mean of its divisors is an integer number (8105022).

Almost surely, 2^71976490 is an apocalyptic number.

71976490 is a deficient number, since it is larger than the sum of its proper divisors (57703862).

71976490 is a wasteful number, since it uses less digits than its factorization.

71976490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6821.

The product of its (nonzero) digits is 95256, while the sum is 43.

The square root of 71976490 is about 8483.8959210966. The cubic root of 71976490 is about 415.9714793378.

The spelling of 71976490 in words is "seventy-one million, nine hundred seventy-six thousand, four hundred ninety".