71420619 has 8 divisors (see below), whose sum is σ = 97801360. Its totient is φ = 46326816.

The previous prime is 71420597. The next prime is 71420623. The reversal of 71420619 is 91602417.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 71420619 - 2¹⁵ = 71387851 is a prime.

It is a super-3 number, since 3×71420619³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (71420719) 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, 321604 + ... + 321825.

It is an arithmetic number, because the mean of its divisors is an integer number (12225170).

Almost surely, 2^71420619 is an apocalyptic number.

71420619 is a deficient number, since it is larger than the sum of its proper divisors (26380741).

71420619 is a wasteful number, since it uses less digits than its factorization.

71420619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643469.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 71420619 is about 8451.0720621706. The cubic root of 71420619 is about 414.8978681271.

The spelling of 71420619 in words is "seventy-one million, four hundred twenty thousand, six hundred nineteen".