70103000 has 64 divisors (see below), whose sum is σ = 178981920. Its totient is φ = 25488000.

The previous prime is 70102999. The next prime is 70103003. The reversal of 70103000 is 30107.

It is a Harshad number since it is a multiple of its sum of digits (11).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70103003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7814 + ... + 14186.

Almost surely, 2^70103000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70103000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89490960).

70103000 is an abundant number, since it is smaller than the sum of its proper divisors (108878920).

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

70103000 is a wasteful number, since it uses less digits than its factorization.

70103000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6405 (or 6391 counting only the distinct ones).

The product of its (nonzero) digits is 21, while the sum is 11.

The square root of 70103000 is about 8372.7534300253. The cubic root of 70103000 is about 412.3305701487.

Adding to 70103000 its reverse (30107), we get a palindrome (70133107).

The spelling of 70103000 in words is "seventy million, one hundred three thousand".