70890054 has 8 divisors (see below), whose sum is σ = 141780120. Its totient is φ = 23630016.

The previous prime is 70890047. The next prime is 70890067. The reversal of 70890054 is 45009807.

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

70890054 is an admirable number.

It is a super-2 number, since 2×70890054² = 10050799512245832, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 70889997 and 70890024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5907499 + ... + 5907510.

It is an arithmetic number, because the mean of its divisors is an integer number (17722515).

Almost surely, 2^70890054 is an apocalyptic number.

70890054 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

70890054 is a wasteful number, since it uses less digits than its factorization.

70890054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11815014.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 70890054 is about 8419.6231507117. The cubic root of 70890054 is about 413.8679244497.

The spelling of 70890054 in words is "seventy million, eight hundred ninety thousand, fifty-four".