70001900 has 36 divisors (see below), whose sum is σ = 153844320. Its totient is φ = 27643200.

The previous prime is 70001887. The next prime is 70001927. The reversal of 70001900 is 910007.

It is a super-2 number, since 2×70001900² = 9800532007220000, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3470 + ... + 12330.

Almost surely, 2^70001900 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 70001900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76922160).

70001900 is an abundant number, since it is smaller than the sum of its proper divisors (83842420).

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

70001900 is a wasteful number, since it uses less digits than its factorization.

70001900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8954 (or 8947 counting only the distinct ones).

The product of its (nonzero) digits is 63, while the sum is 17.

The square root of 70001900 is about 8366.7138112882. The cubic root of 70001900 is about 412.1322587291.

Adding to 70001900 its reverse (910007), we get a palindrome (70911907).

The spelling of 70001900 in words is "seventy million, one thousand, nine hundred".