70723974 has 16 divisors (see below), whose sum is σ = 142240320. Its totient is φ = 23442600.

The previous prime is 70723943. The next prime is 70723979. The reversal of 70723974 is 47932707.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70723979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31852 + ... + 33999.

It is an arithmetic number, because the mean of its divisors is an integer number (8890020).

Almost surely, 2^70723974 is an apocalyptic number.

70723974 is an abundant number, since it is smaller than the sum of its proper divisors (71516346).

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

70723974 is a wasteful number, since it uses less digits than its factorization.

70723974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66035.

The product of its (nonzero) digits is 74088, while the sum is 39.

The square root of 70723974 is about 8409.7546932119. The cubic root of 70723974 is about 413.5444708376.

The spelling of 70723974 in words is "seventy million, seven hundred twenty-three thousand, nine hundred seventy-four".