70723590 has 64 divisors (see below), whose sum is σ = 194793984. Its totient is φ = 16098048.

The previous prime is 70723561. The next prime is 70723603. The reversal of 70723590 is 9532707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63922 + ... + 65018.

It is an arithmetic number, because the mean of its divisors is an integer number (3043656).

Almost surely, 2^70723590 is an apocalyptic number.

70723590 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 70723590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97396992).

70723590 is an abundant number, since it is smaller than the sum of its proper divisors (124070394).

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

70723590 is a wasteful number, since it uses less digits than its factorization.

70723590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1421.

The product of its (nonzero) digits is 13230, while the sum is 33.

The square root of 70723590 is about 8409.7318625507. The cubic root of 70723590 is about 413.5437223816.

The spelling of 70723590 in words is "seventy million, seven hundred twenty-three thousand, five hundred ninety".