70828471 has 16 divisors (see below), whose sum is σ = 84846400. Its totient is φ = 59058720.

The previous prime is 70828463. The next prime is 70828487. The reversal of 70828471 is 17482807.

70828471 = T₆₆ + T₆₇ + ... + T₇₅₁.

It is not a de Polignac number, because 70828471 - 2³ = 70828463 is a prime.

It is a super-3 number, since 3×70828471³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70828471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70828421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9901 + ... + 15481.

It is an arithmetic number, because the mean of its divisors is an integer number (5302900).

Almost surely, 2^70828471 is an apocalyptic number.

70828471 is a deficient number, since it is larger than the sum of its proper divisors (14017929).

70828471 is an equidigital number, since it uses as much as digits as its factorization.

70828471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5639 (or 5625 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 37.

The square root of 70828471 is about 8415.9652447001. The cubic root of 70828471 is about 413.7480457978.

The spelling of 70828471 in words is "seventy million, eight hundred twenty-eight thousand, four hundred seventy-one".