71479800 has 384 divisors, whose sum is σ = 295219200. Its totient is φ = 15552000.

The previous prime is 71479789. The next prime is 71479801. The reversal of 71479800 is 897417.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71479801) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1171770 + ... + 1171830.

It is an arithmetic number, because the mean of its divisors is an integer number (768800).

Almost surely, 2^71479800 is an apocalyptic number.

71479800 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71479800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147609600).

71479800 is an abundant number, since it is smaller than the sum of its proper divisors (223739400).

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

71479800 is a wasteful number, since it uses less digits than its factorization.

71479800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124 (or 109 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 71479800 is about 8454.5727272287. The cubic root of 71479800 is about 415.0124349107.

The spelling of 71479800 in words is "seventy-one million, four hundred seventy-nine thousand, eight hundred".