70066998 has 16 divisors (see below), whose sum is σ = 155704560. Its totient is φ = 23355648.

The previous prime is 70066973. The next prime is 70066999. The reversal of 70066998 is 89966007.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70066999) 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, 648715 + ... + 648822.

It is an arithmetic number, because the mean of its divisors is an integer number (9731535).

Almost surely, 2^70066998 is an apocalyptic number.

70066998 is an abundant number, since it is smaller than the sum of its proper divisors (85637562).

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

70066998 is a wasteful number, since it uses less digits than its factorization.

70066998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1297548 (or 1297542 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 70066998 is about 8370.6032040708. The cubic root of 70066998 is about 412.2599727557.

The spelling of 70066998 in words is "seventy million, sixty-six thousand, nine hundred ninety-eight".