70889135 has 4 divisors (see below), whose sum is σ = 85066968. Its totient is φ = 56711304.

The previous prime is 70889101. The next prime is 70889141. The reversal of 70889135 is 53198807.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 70889135 - 2⁸ = 70888879 is a prime.

It is a super-2 number, since 2×70889135² = 10050538922096450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70889092 and 70889101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7088909 + ... + 7088918.

It is an arithmetic number, because the mean of its divisors is an integer number (21266742).

Almost surely, 2^70889135 is an apocalyptic number.

70889135 is a deficient number, since it is larger than the sum of its proper divisors (14177833).

70889135 is a wasteful number, since it uses less digits than its factorization.

70889135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14177832.

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 70889135 is about 8419.5685756457. The cubic root of 70889135 is about 413.8661360170.

The spelling of 70889135 in words is "seventy million, eight hundred eighty-nine thousand, one hundred thirty-five".