1047210749 has 8 divisors (see below), whose sum is σ = 1128721272. Its totient is φ = 965836800.

The previous prime is 1047210743. The next prime is 1047210763. The reversal of 1047210749 is 9470127401.

It can be written as a sum of positive squares in 4 ways, for example, as 9211225 + 1037999524 = 3035^2 + 32218^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1047210749 - 2⁴ = 1047210733 is a prime.

It is a super-2 number, since 2×1047210749² = 2193300705642282002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1047210743) 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, 17924 + ... + 49149.

It is an arithmetic number, because the mean of its divisors is an integer number (141090159).

Almost surely, 2^1047210749 is an apocalyptic number.

It is an amenable number.

1047210749 is a deficient number, since it is larger than the sum of its proper divisors (81510523).

1047210749 is a wasteful number, since it uses less digits than its factorization.

1047210749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68287.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 1047210749 is about 32360.6357941249. The cubic root of 1047210749 is about 1015.4955636154.

The spelling of 1047210749 in words is "one billion, forty-seven million, two hundred ten thousand, seven hundred forty-nine".