70711428 has 12 divisors (see below), whose sum is σ = 164993360. Its totient is φ = 23570472.

The previous prime is 70711427. The next prime is 70711439. The reversal of 70711428 is 82411707.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 70711395 and 70711404.

It is not an unprimeable number, because it can be changed into a prime (70711423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2946298 + ... + 2946321.

Almost surely, 2^70711428 is an apocalyptic number.

It is an amenable number.

70711428 is an abundant number, since it is smaller than the sum of its proper divisors (94281932).

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

70711428 is a wasteful number, since it uses less digits than its factorization.

70711428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5892626 (or 5892624 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 30.

The square root of 70711428 is about 8409.0087406305. The cubic root of 70711428 is about 413.5200159724.

The spelling of 70711428 in words is "seventy million, seven hundred eleven thousand, four hundred twenty-eight".