70989458 has 16 divisors (see below), whose sum is σ = 111694464. Its totient is φ = 33798960.

The previous prime is 70989439. The next prime is 70989461. The reversal of 70989458 is 85498907.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6728 + ... + 13683.

It is an arithmetic number, because the mean of its divisors is an integer number (6980904).

Almost surely, 2^70989458 is an apocalyptic number.

70989458 is a deficient number, since it is larger than the sum of its proper divisors (40705006).

70989458 is a wasteful number, since it uses less digits than its factorization.

70989458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20497.

The product of its (nonzero) digits is 725760, while the sum is 50.

The square root of 70989458 is about 8425.5241973423. The cubic root of 70989458 is about 414.0612797961.

The spelling of 70989458 in words is "seventy million, nine hundred eighty-nine thousand, four hundred fifty-eight".