70228664 has 32 divisors (see below), whose sum is σ = 147538800. Its totient is φ = 31057920.

The previous prime is 70228661. The next prime is 70228667. The reversal of 70228664 is 46682207.

It is an interprime number because it is at equal distance from previous prime (70228661) and next prime (70228667).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70228661) 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, 7529 + ... + 14040.

Almost surely, 2^70228664 is an apocalyptic number.

70228664 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

It is an amenable number.

70228664 is an abundant number, since it is smaller than the sum of its proper divisors (77310136).

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

70228664 is a wasteful number, since it uses less digits than its factorization.

70228664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21623 (or 21619 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 70228664 is about 8380.2544114126. The cubic root of 70228664 is about 412.5767991687.

The spelling of 70228664 in words is "seventy million, two hundred twenty-eight thousand, six hundred sixty-four".