70390641 has 8 divisors (see below), whose sum is σ = 93895200. Its totient is φ = 46906592.

The previous prime is 70390633. The next prime is 70390673. The reversal of 70390641 is 14609307.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70390641 - 2³ = 70390633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70390599 and 70390608.

It is not an unprimeable number, because it can be changed into a prime (70390601) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6946 + ... + 13748.

It is an arithmetic number, because the mean of its divisors is an integer number (11736900).

Almost surely, 2^70390641 is an apocalyptic number.

It is an amenable number.

70390641 is a deficient number, since it is larger than the sum of its proper divisors (23504559).

70390641 is a wasteful number, since it uses less digits than its factorization.

70390641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10255.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 70390641 is about 8389.9130508009. The cubic root of 70390641 is about 412.8937478156.

Adding to 70390641 its reverse (14609307), we get a palindrome (84999948).

The spelling of 70390641 in words is "seventy million, three hundred ninety thousand, six hundred forty-one".