746779997 has 2 divisors, whose sum is σ = 746779998. Its totient is φ = 746779996.

The previous prime is 746779993. The next prime is 746780033. The reversal of 746779997 is 799977647.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 743434756 + 3345241 = 27266^2 + 1829^2 .

It is a cyclic number.

It is not a de Polignac number, because 746779997 - 2² = 746779993 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (746779993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 373389998 + 373389999.

It is an arithmetic number, because the mean of its divisors is an integer number (373389999).

Almost surely, 2^746779997 is an apocalyptic number.

It is an amenable number.

746779997 is a deficient number, since it is larger than the sum of its proper divisors (1).

746779997 is an equidigital number, since it uses as much as digits as its factorization.

746779997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42007896, while the sum is 65.

The square root of 746779997 is about 27327.2756966369. The cubic root of 746779997 is about 907.2581792115.

The spelling of 746779997 in words is "seven hundred forty-six million, seven hundred seventy-nine thousand, nine hundred ninety-seven".