71944698 has 16 divisors (see below), whose sum is σ = 164445120. Its totient is φ = 20555616.

The previous prime is 71944693. The next prime is 71944721. The reversal of 71944698 is 89644917.

It is a super-2 number, since 2×71944698² = 10352079140622408, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (71944693) 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, 856443 + ... + 856526.

It is an arithmetic number, because the mean of its divisors is an integer number (10277820).

Almost surely, 2^71944698 is an apocalyptic number.

71944698 is an abundant number, since it is smaller than the sum of its proper divisors (92500422).

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

71944698 is a wasteful number, since it uses less digits than its factorization.

71944698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1712981.

The product of its digits is 435456, while the sum is 48.

The square root of 71944698 is about 8482.0220466584. The cubic root of 71944698 is about 415.9102254810.

The spelling of 71944698 in words is "seventy-one million, nine hundred forty-four thousand, six hundred ninety-eight".