70899428 has 12 divisors (see below), whose sum is σ = 124400640. Its totient is φ = 35356392.

The previous prime is 70899407. The next prime is 70899457. The reversal of 70899428 is 82499807.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21608 + ... + 24671.

It is an arithmetic number, because the mean of its divisors is an integer number (10366720).

Almost surely, 2^70899428 is an apocalyptic number.

It is an amenable number.

70899428 is a deficient number, since it is larger than the sum of its proper divisors (53501212).

70899428 is a wasteful number, since it uses less digits than its factorization.

70899428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46666 (or 46664 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 47.

The square root of 70899428 is about 8420.1798080564. The cubic root of 70899428 is about 413.8861659693.

The spelling of 70899428 in words is "seventy million, eight hundred ninety-nine thousand, four hundred twenty-eight".