71428124 has 6 divisors (see below), whose sum is σ = 124999224. Its totient is φ = 35714060.

The previous prime is 71428121. The next prime is 71428127. The reversal of 71428124 is 42182417.

It is an interprime number because it is at equal distance from previous prime (71428121) and next prime (71428127).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71428121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8928512 + ... + 8928519.

It is an arithmetic number, because the mean of its divisors is an integer number (20833204).

Almost surely, 2^71428124 is an apocalyptic number.

It is an amenable number.

71428124 is a deficient number, since it is larger than the sum of its proper divisors (53571100).

71428124 is a wasteful number, since it uses less digits than its factorization.

71428124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17857035 (or 17857033 counting only the distinct ones).

The product of its digits is 3584, while the sum is 29.

The square root of 71428124 is about 8451.5160770125. The cubic root of 71428124 is about 414.9124003424.

The spelling of 71428124 in words is "seventy-one million, four hundred twenty-eight thousand, one hundred twenty-four".