897769706 has 4 divisors (see below), whose sum is σ = 1346654562. Its totient is φ = 448884852.

The previous prime is 897769687. The next prime is 897769723. The reversal of 897769706 is 607967798.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 566202025 + 331567681 = 23795^2 + 18209^2 .

It is a super-2 number, since 2×897769706² = 1611980890022652872, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224442425 + ... + 224442428.

Almost surely, 2^897769706 is an apocalyptic number.

897769706 is a deficient number, since it is larger than the sum of its proper divisors (448884856).

897769706 is a wasteful number, since it uses less digits than its factorization.

897769706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448884855.

The product of its (nonzero) digits is 8001504, while the sum is 59.

The square root of 897769706 is about 29962.8053759991. The cubic root of 897769706 is about 964.6911970664.

The spelling of 897769706 in words is "eight hundred ninety-seven million, seven hundred sixty-nine thousand, seven hundred six".