71420976 has 90 divisors (see below), whose sum is σ = 219755900. Its totient is φ = 21637440.

The previous prime is 71420969. The next prime is 71420983. The reversal of 71420976 is 67902417.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (71420969) and next prime (71420983).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 71420976.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 15375 + ... + 19473.

Almost surely, 2^71420976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71420976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109877950).

71420976 is an abundant number, since it is smaller than the sum of its proper divisors (148334924).

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

71420976 is a wasteful number, since it uses less digits than its factorization.

71420976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4135 (or 4115 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 71420976 is about 8451.0931837248. The cubic root of 71420976 is about 414.8985594228.

The spelling of 71420976 in words is "seventy-one million, four hundred twenty thousand, nine hundred seventy-six".