70857441 has 36 divisors (see below), whose sum is σ = 109540548. Its totient is φ = 44126208.

The previous prime is 70857401. The next prime is 70857473. The reversal of 70857441 is 14475807.

It can be written as a sum of positive squares in 2 ways, for example, as 7177041 + 63680400 = 2679^2 + 7980^2 .

It is not a de Polignac number, because 70857441 - 2⁷ = 70857313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70857396 and 70857405.

It is not an unprimeable number, because it can be changed into a prime (70857401) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 367041 + ... + 367233.

It is an arithmetic number, because the mean of its divisors is an integer number (3042793).

Almost surely, 2^70857441 is an apocalyptic number.

It is an amenable number.

70857441 is a deficient number, since it is larger than the sum of its proper divisors (38683107).

70857441 is a wasteful number, since it uses less digits than its factorization.

70857441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350 (or 328 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The square root of 70857441 is about 8417.6862022767. The cubic root of 70857441 is about 413.8044480087.

The spelling of 70857441 in words is "seventy million, eight hundred fifty-seven thousand, four hundred forty-one".