70905854 has 16 divisors (see below), whose sum is σ = 108301536. Its totient is φ = 34809600.

The previous prime is 70905847. The next prime is 70905859. The reversal of 70905854 is 45850907.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70905859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39014 + ... + 40790.

It is an arithmetic number, because the mean of its divisors is an integer number (6768846).

Almost surely, 2^70905854 is an apocalyptic number.

70905854 is a deficient number, since it is larger than the sum of its proper divisors (37395682).

70905854 is a wasteful number, since it uses less digits than its factorization.

70905854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2131.

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 70905854 is about 8420.5613827108. The cubic root of 70905854 is about 413.8986698414.

The spelling of 70905854 in words is "seventy million, nine hundred five thousand, eight hundred fifty-four".