1207797021 has 8 divisors (see below), whose sum is σ = 1789328960. Its totient is φ = 805197996.

The previous prime is 1207796971. The next prime is 1207797037. The reversal of 1207797021 is 1207977021.

It is not a de Polignac number, because 1207797021 - 2⁷ = 1207796893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1207797121) 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, 22366585 + ... + 22366638.

It is an arithmetic number, because the mean of its divisors is an integer number (223666120).

Almost surely, 2^1207797021 is an apocalyptic number.

It is an amenable number.

1207797021 is a deficient number, since it is larger than the sum of its proper divisors (581531939).

1207797021 is an equidigital number, since it uses as much as digits as its factorization.

1207797021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44733232 (or 44733226 counting only the distinct ones).

The product of its (nonzero) digits is 12348, while the sum is 36.

The square root of 1207797021 is about 34753.3742390577. The cubic root of 1207797021 is about 1064.9551498669.

The spelling of 1207797021 in words is "one billion, two hundred seven million, seven hundred ninety-seven thousand, twenty-one".