70902993 has 8 divisors (see below), whose sum is σ = 108042688. Its totient is φ = 40515984.

The previous prime is 70902973. The next prime is 70903061. The reversal of 70902993 is 39920907.

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

It is not a de Polignac number, because 70902993 - 2⁵ = 70902961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70902973) 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 7 ways as a sum of consecutive naturals, for example, 1688146 + ... + 1688187.

It is an arithmetic number, because the mean of its divisors is an integer number (13505336).

Almost surely, 2^70902993 is an apocalyptic number.

It is an amenable number.

70902993 is a deficient number, since it is larger than the sum of its proper divisors (37139695).

70902993 is a wasteful number, since it uses less digits than its factorization.

70902993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3376343.

The product of its (nonzero) digits is 30618, while the sum is 39.

The square root of 70902993 is about 8420.3914992119. The cubic root of 70902993 is about 413.8931029291.

The spelling of 70902993 in words is "seventy million, nine hundred two thousand, nine hundred ninety-three".