654091763 has 4 divisors (see below), whose sum is σ = 704406528. Its totient is φ = 603777000.

The previous prime is 654091747. The next prime is 654091769. The reversal of 654091763 is 367190456.

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

It is a cyclic number.

It is not a de Polignac number, because 654091763 - 2⁴ = 654091747 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 654091763.

It is not an unprimeable number, because it can be changed into a prime (654091769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25157363 + ... + 25157388.

It is an arithmetic number, because the mean of its divisors is an integer number (176101632).

Almost surely, 2^654091763 is an apocalyptic number.

654091763 is a deficient number, since it is larger than the sum of its proper divisors (50314765).

654091763 is a wasteful number, since it uses less digits than its factorization.

654091763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50314764.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 654091763 is about 25575.2177507837. The cubic root of 654091763 is about 868.0529687108.

The spelling of 654091763 in words is "six hundred fifty-four million, ninety-one thousand, seven hundred sixty-three".