70900001 has 4 divisors (see below), whose sum is σ = 74631600. Its totient is φ = 67168404.

The previous prime is 70899977. The next prime is 70900021. The reversal of 70900001 is 10000907.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 70900001 - 2⁶ = 70899937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (70900021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1865771 + ... + 1865808.

It is an arithmetic number, because the mean of its divisors is an integer number (18657900).

Almost surely, 2^70900001 is an apocalyptic number.

It is an amenable number.

70900001 is a deficient number, since it is larger than the sum of its proper divisors (3731599).

70900001 is a wasteful number, since it uses less digits than its factorization.

70900001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3731598.

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

The square root of 70900001 is about 8420.2138333893. The cubic root of 70900001 is about 413.8872809577.

Adding to 70900001 its reverse (10000907), we get a palindrome (80900908).

The spelling of 70900001 in words is "seventy million, nine hundred thousand, one".