70099386 has 64 divisors (see below), whose sum is σ = 166932480. Its totient is φ = 19206720.

The previous prime is 70099369. The next prime is 70099387. The reversal of 70099386 is 68399007.

It is a happy number.

It is a super-3 number, since 3×70099386³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (70099387) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 122481 + ... + 123051.

It is an arithmetic number, because the mean of its divisors is an integer number (2608320).

Almost surely, 2^70099386 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70099386, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83466240).

70099386 is an abundant number, since it is smaller than the sum of its proper divisors (96833094).

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

70099386 is a wasteful number, since it uses less digits than its factorization.

70099386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 70099386 is about 8372.5376081568. The cubic root of 70099386 is about 412.3234844401.

The spelling of 70099386 in words is "seventy million, ninety-nine thousand, three hundred eighty-six".