70699890 has 16 divisors (see below), whose sum is σ = 169679808. Its totient is φ = 18853296.

The previous prime is 70699879. The next prime is 70699897. The reversal of 70699890 is 9899607.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (70699897) 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, 1178302 + ... + 1178361.

It is an arithmetic number, because the mean of its divisors is an integer number (10604988).

Almost surely, 2^70699890 is an apocalyptic number.

70699890 is an abundant number, since it is smaller than the sum of its proper divisors (98979918).

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

70699890 is a wasteful number, since it uses less digits than its factorization.

70699890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2356673.

The product of its (nonzero) digits is 244944, while the sum is 48.

The square root of 70699890 is about 8408.3226626956. The cubic root of 70699890 is about 413.4975233636.

The spelling of 70699890 in words is "seventy million, six hundred ninety-nine thousand, eight hundred ninety".