70738998 has 16 divisors (see below), whose sum is σ = 154339776. Its totient is φ = 21436040.

The previous prime is 70738979. The next prime is 70739021. The reversal of 70738998 is 89983707.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 70738998.

It is a congruent number.

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, 535836 + ... + 535967.

It is an arithmetic number, because the mean of its divisors is an integer number (9646236).

Almost surely, 2^70738998 is an apocalyptic number.

70738998 is an abundant number, since it is smaller than the sum of its proper divisors (83600778).

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

70738998 is a wasteful number, since it uses less digits than its factorization.

70738998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071819.

The product of its (nonzero) digits is 762048, while the sum is 51.

The square root of 70738998 is about 8410.6478941875. The cubic root of 70738998 is about 413.5737520553.

The spelling of 70738998 in words is "seventy million, seven hundred thirty-eight thousand, nine hundred ninety-eight".