70549690 has 16 divisors (see below), whose sum is σ = 127269792. Its totient is φ = 28157584.

The previous prime is 70549681. The next prime is 70549697. The reversal of 70549690 is 9694507.

It is a super-2 number, since 2×70549690² = 9954517518192200, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (70549697) 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, 2884 + ... + 12223.

It is an arithmetic number, because the mean of its divisors is an integer number (7954362).

Almost surely, 2^70549690 is an apocalyptic number.

70549690 is a deficient number, since it is larger than the sum of its proper divisors (56720102).

70549690 is a wasteful number, since it uses less digits than its factorization.

70549690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15581.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 70549690 is about 8399.3862871046. The cubic root of 70549690 is about 413.2044943279.

The spelling of 70549690 in words is "seventy million, five hundred forty-nine thousand, six hundred ninety".